Symptom: Allergic Reaction

    An allergic reaction is the body's way of responding to an "invader." When the body senses a foreign substance, called an antigen, the immune system is triggered. The immune system normally protects the body from harmful agents such as bacteria and toxins. Its overreaction to a harmless substance (an allergen) is called a hypersensitivity reaction, or an allergic reaction.
  • Anything can be an allergen. Dust, pollen, plants, medications (such as ibuprofen, sulfa drugs such as sulfamethoxazole and trimethoprim [Bactrim], codeine, amoxicillin [Amoxil, Amoxil Pediatric Drops, Moxatag, Trimox], cephalexin [Keflex]), foods (common food allergies include shrimp and other shellfish, peanuts), insect bites (such as mosquito bites or bee stings), animal dander, viruses, or bacteria are examples of allergens.
  • Reactions may occur in one spot, such as a small localized skin rash, itchy eyes, face bumps, or all over, as in a whole body rash such as hives (urticaria).
  • A reaction may include one or several symptoms.
  • Most allergic reactions are minor, such as a rash from poison ivy, mosquito or other bug bites, or sneezing from hay fever. The type of reaction depends on the person's immune system response, which is sometimes unpredictable.In rare cases, an allergic reaction can be life-threatening (known as anaphylaxis). The Asthma and Allergy Foundation of America (AAFA) estimates that at least one in 50 Americans (1.6%), and as many as one in 20 (5.1%) have had anaphylaxis occur, resulting in an average of 186 to 225 deaths per year.Allergies are very common. The AAFA states that allergies affect 50 million Americans, are the fifth leading chronic disease in the U.S., and the third leading chronic disease among children under age 18. More than 40 million people have indoor/outdoor allergies as their primary allergy. More than 17 million people visit their doctor for allergies annually, and food allergies account for 50,000 visits to the emergency room annually.

    Source: http://www.emedicinehealth.com

    An allergic reaction is the body's way of responding to an "invader." When the body senses a foreign substance, called an antigen, the immune system is triggered. The immune system normally protects the body from harmful agents such as bacteria and toxins. Its overreaction to a harmless substance (an allergen) is called a hypersensitivity reaction, or an allergic reaction.
    • Anything can be an allergen. Dust, pollen, plants, medications (such as ibuprofen, sulfa drugs such as sulfamethoxazole and trimethoprim [Bactrim], codeine, amoxicillin [Amoxil, Amoxil Pediatric Drops, Moxatag, Trimox], cephalexin [Keflex]), foods (common food allergies include shrimp and other shellfish, peanuts), insect bites (such as mosquito bites or bee stings), animal dander, viruses, or bacteria are examples of allergens.
    • Reactions may occur in one spot, such as a small localized skin rash, itchy eyes, face bumps, or all over, as in a whole body rash such as hives (urticaria).
    • A reaction may include one or several symptoms.
    Most allergic reactions are minor, such as a rash from poison ivy, mosquito or other bug bites, or sneezing from hay fever. The type of reaction depends on the person's immune system response, which is sometimes unpredictable.In rare cases, an allergic reaction can be life-threatening (known as anaphylaxis). The Asthma and Allergy Foundation of America (AAFA) estimates that at least one in 50 Americans (1.6%), and as many as one in 20 (5.1%) have had anaphylaxis occur, resulting in an average of 186 to 225 deaths per year.Allergies are very common. The AAFA states that allergies affect 50 million Americans, are the fifth leading chronic disease in the U.S., and the third leading chronic disease among children under age 18. More than 40 million people have indoor/outdoor allergies as their primary allergy. More than 17 million people visit their doctor for allergies annually, and food allergies account for 50,000 visits to the emergency room annually.

    Source: http://www.emedicinehealth.com

    1 23...Next»(Page 1 of 14)GlossaryAllergic Reaction Topic Guide YOU MAY ALSO LIKE VIEW What Happens in a Nasal Allergy Attack Must Read Articles Related to Allergic Reaction Allergy Shots Some allergens are simply impossible to avoid. You cannot live a normal life and completely avoid pollen, dust mites, mold spores, and certain other common trig...learn more >> Allergy: Insect Sting Several insects belonging to the class Hymenoptera are capable of injecting venom into humans and animals. These insects include honeybees, bumble bees, hornets...learn more >> Allergy: Poison Ivy, Oak, and Sumac Poison ivy, poison oak, and poison sumac can causes an allergic reaction when someone comes in contact with the plant. This oil is called urushiol. The resultin...learn more >> See the Entire Allergic Reaction Topic Guide » Patient Comments & Reviews The eMedicineHealth doctors ask about Allergic Reaction: Allergic Reaction - Symptoms What were the symptoms and signs of your allergic reaction? View 32 Comments Share Your Story Allergic Reaction - Treatment What was the treatment for your allergic reaction? View 6 Comments Share Your Story Allergic Reaction - Experience Please describe your experience with an allergic reaction. View 1 Comment Share Your Story Allergic Reaction - Home Remedies Have any home remedies been effective for your allergic reaction(s)? Share Your Story $(function(){$('#articleInArticle').appendTo('#AIATop');$('.articleLrgImg').appendTo('#AIATop');}); #shareTools{border:1px solid #e0eec4;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;padding:5px 8px;margin:15px 0 10px;clear:both}#shareTools>a{display:inline-block;color:#444;margin:0 20px 0 0;padding:0 0 0 21px;font-size:10px;line-height:18px;text-decoration:none;text-transform:uppercase;cursor:pointer}#slideShare{position:absolute;top:582px;left:545px}#slideShare>a{padding:0 25px 0 0!important;cursor:pointer}.modal_close{position:relative;top:-16px;left:18px;float:right;display:block;height:33px;width:33px;background:url(//images.eMedicineHealth.com/images/chksprite.png) no-repeat 0px -57px;z-index:100}#fbModal,#twModal{padding:15px}#fbModal>a,#twModal>a{display:block;cursor:pointer;background:#a6d066;width:100px;margin:25px auto 0;padding:4px 6px;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;color:#fff;text-decoration:none;text-align:center}#printBtn{display:block;cursor:pointer;background:#a6d066;width:100px;margin:10px auto;padding:4px 6px;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;color:#fff;text-decoration:none;text-align:center} Facebook Twitter Email Print function elemScan(){if(typeof s_articletype=='undefined'){setTimeout(elemScan,100)}else{switch(s_articletype){case'emhsli':$('#slideShare').show();$('#shareTools').remove();break;default:$('#shareTools').show();$('.fb_share').css({'background':'url(http://images.medicinenet.com/images/socialmedia/facebook.png) no-repeat'});$('.tw_share').css({'background':'url(http://images.medicinenet.com/images/socialmedia/twitter.png) no-repeat'});$('.email_share').css({'background':'url(http://images.medicinenet.com/images/socialmedia/email.png) no-repeat'});$('.print_share').css({'background':'url(http://images.medicinenet.com/images/socialmedia/print.png) no-repeat'});$('#slideShare').remove();if($('#mainTOC, .tocBullet').length){$('#shareTools').insertAfter($('#mainTOC,.tocBullet'))}else if($('#decisionPoint_fmt').length){$('#shareTools').insertBefore($('#decisionPoint_fmt'))}else if($('.News_list_rdr, #TOCcontainer').length){$('#shareTools').insertBefore($('.News_list_rdr,#TOCcontainer'))}else if($('#healthwise_reference').length==1&&$('#ITA').length==0){$('#shareTools').insertAfter($('h3:first'))}else if($('#ITA').length==1&&$('#healthwise_reference').length==0){$('#shareTools').insertBefore($('#ITA'))}else{$('#shareTools').insertBefore($('#textArea p:not(:empty):first'))}}}}elemScan();switch(location.hostname.replace('www.','').replace('qa00.','')){case'medicinenet.com':emSite='MedicineNet';break;case'rxlist.com':emSite='RxList';break;case'emedicinehealth.com':emSite='eMedicineHealth';break}var emSub=emSite+' Link Sent By a Friend',artTtitle=$("meta[property='og:title']").attr('content'),artLink=$("meta[property='og:url']").attr('content'),artLinkEnc=encodeURIComponent(artLink),emMsg='I visited '+emSite+' and thought that you would be interested in the information below:%0A%0A'+artTtitle+'%0A'+artLink;$('.email_share').on('click',function(){window.location='mailto:?subject='+emSub+'&body='+emMsg;wmdPageLink('share-email')});$('.favorites_share').on('click',function(){var triggerDefault=false;if(window.sidebar&&window.sidebar.addPanel){window.sidebar.addPanel(artTtitle,artLink,'')}else if((window.sidebar&&(navigator.userAgent.toLowerCase().indexOf('firefox')>-1))||(window.opera&&window.print)){var thisFav=$(this);thisFav.attr('href',artLink);thisFav.attr('title',artTtitle);thisFav.attr('rel','sidebar');thisFav.off(e);triggerDefault=true}else if(window.external&&('AddFavorite'in window.external)){window.external.AddFavorite(artLink,artTtitle)}else{alert('Press '+(navigator.userAgent.toLowerCase().indexOf('mac')!=-1?'Cmd':'Ctrl')+'+D to bookmark this page.')}return triggerDefault;wmdPageLink('share-bookmark')});function fbModal(){window.open('https://www.facebook.com/login.php?next=https%3A%2F%2Fwww.facebook.com%2Fsharer%2Fsharer.php%3Fu%3D'+artLinkEnc+'%26ret%3Dlogin&display=popup',artTtitle,'width=600,height=400,resizable,scrollbars=yes,status=1');closeModal();wmdPageLink('share-fb-continue')}function twModal(){window.open('https://twitter.com/intent/tweet?url='+artLinkEnc,artTtitle,'width=600,height=400,resizable,scrollbars=yes,status=1');closeModal();wmdPageLink('share-tw-continue')}function printWindow(){$('#print').text('body{background:none}#page-wrap{display:none}');$('.block_page,#printBtn,.modal_close').remove();$('.modal_box').removeAttr('style');$('#printModal').css({'height':'auto','width':'auto'});closeModal();window.frames['printFrame'].focus();window.frames['printFrame'].print();$('#print').text('');wmdPageLink('share-print-button')}function printModal(){$('#printModal').append('')}$.getScript('/javascript/modal.js',function(){var modalFB=new modal({elem:'.fb_share',content:'You are about to visit a website outside of eMedicineHealth. Please familiarize yourself with this other website\'s Privacy Policy as it differs from ours.Continue',height:'200',width:'600',track:'share-fb'});modalFB.init();var modalTW=new modal({elem:'.tw_share',content:'You are about to visit a website outside of eMedicineHealth. Please familiarize yourself with this other website\'s Privacy Policy as it differs from ours.Continue',height:'200',width:'600',track:'share-tw'});modalTW.init();var modalPR=new modal({elem:'.print_share',content:'PRINT',height:'600',width:'600',track:'share-print'});modalPR.init();$('.print_share').on('click',function(){printModal()})});
    webmd.ads2Consumer.defineAd({ targets:{pvid: window.s_pageview_id || '',art: '59357',pt: '1625',uri: 'subject%3Dallergic%5Freactionsource%3Dem'},blockCodes: '_t886_k_j45_j30_i_cust4_b24_', id: 'ads2-pos-121', pos: '121', sizes: [[300,250],[300,600],[300,1050]] });
    var rrsspImgArray = new Array("http://images.emedicinehealth.com/images/emedicinehealth/redesign/rtnav-ss-adult-skin.jpg", "http://images.emedicinehealth.com/images/emedicinehealth/redesign/rtnav-ss-hiv-aids.jpg", "http://images.emedicinehealth.com/images/emedicinehealth/redesign/rtnav-ss-multiple-sclerosis.jpg", "http://images.emedicinehealth.com/images/emedicinehealth/redesign/rtnav-ss-adult-adhd.jpg", "http://images.emedicinehealth.com/images/emedicinehealth/redesign/rtnav-ss-adhd-in-children.jpg", "http://images.emedicinehealth.com/images/emedicinehealth/redesign/rtnav-ss-atrial-fibrillation.jpg", "http://images.emedicinehealth.com/images/emedicinehealth/redesign/rtnav-ss-skin-condition.jpg"); var rrsspLinkArray = new Array("http://www.emedicinehealth.com/slideshow-skin-problems/article_em.htm", "http://www.emedicinehealth.com/slideshow_pictures_hiv_aids_myths_and_facts/article_em.htm", "http://www.emedicinehealth.com/pictures_slideshow_multiple_sclerosis/article_em.htm", "http://www.emedicinehealth.com/slideshow_adhd_in_adults/article_em.htm", "http://www.emedicinehealth.com/slideshow_adhd_symptoms_in_children/article_em.htm", "http://www.emedicinehealth.com/slideshow_pictures_atrial_fibrillation/article_em.htm", "http://www.emedicinehealth.com/script/main/art.asp?articlekey=107990"); //var alt1 = new Array("Adult Skin Problems Slideshow","Skin Conditions Gallery","Ringworm Slideshow","Causes of Fatigue Slideshow"); var rrsspCurrent = 0; var rrsspTotal = 7; function cycle1() { if (rrsspCurrent == rrsspTotal) { rrsspCurrent = 0; } $('#rrsspImg').attr('src', rrsspImgArray[rrsspCurrent]); $('#rrsspLink').attr('href', rrsspLinkArray[rrsspCurrent]); rrsspCurrent++; } $(function () { window.setInterval("cycle1()", 3500); }); From WebMD Allergies Resources
    • How to Spot an Allergic Reaction
    • Are You At Risk for COPD?
    • Soothe Your Child's Allergies
    Featured Centers
    • How Well Are You Living With AFib?
    • Could Stress Be Making Your MS Worse?
    • Ready to Stop Smoking?
    Health Solutions From Our Sponsors
    • Frequent Constipation?

    Read What Your Physician is Reading on Medscape Hypersensitivity Reactions, Immediate »The immune system is an integral part of human protection against disease, but the normally protective immune mechanisms can sometimes cause detrimental reactions in the host. Read More on Medscape Reference »
    Featured Topics
    • MS Slideshow
    • Teeth Wrecking Habits
    • Childhood ADHD Facts
    • Pictures of Psoriasis
    • Adult ADHD Slideshow
    • RA in Pictures
    Topics Related to Allergic Reaction
    • Antibiotics
    • Bee and Wasp Stings
    • Contact Dermatitis
    • Eczema
    • Eyelid Inflammation (Blepharitis)
    • Hives and Angioedema
    • Insect Bites
    • Life-Threatening Skin Rashes
    • Poison Ivy, Oak, and Sumac
    • Skin Rashes in Children
    Allergy Topics
    • Allergic Reaction
    • Allergies Quiz
    • Hives
    • Food Allergy
    • Hay Fever Medications
    Medical Dictionary
    or A-Z List webmd.ads2Consumer.defineAd({ targets:{pvid: window.s_pageview_id || '',art: '59357',pt: '1625',uri: 'subject%3Dallergic%5Freactionsource%3Dem'},blockCodes: '_t886_k_j45_j30_i_cust4_b24_', id: 'ads2-pos-113', pos: '113', sizes: [160, 600] }); #ContentPane23 { padding: 0; margin-left: 20px; } .hs_cols a, a:visited, a:active { color: #1f29ad; text-decoration: none } .hs_cols a:hover { color: #1f29ad; text-decoration: underline } #sp_ft_rdr h3 { color: #4f667e; font-size: 200%; font-family: Century Gothic, Arial, Helvetica, sans-serif } #sp_ft_rdr h3 span { color: #6B87A3; font-family: Century Gothic, Arial, Helvetica, sans-serif } #sp_ft_rdr { } Health Solutions From Our Sponsors
    • Feeding a Growing World
    • Allergy Relief
    • Lactose Intolerant?
    • IBS-C Symptoms?
    • COPD and Alpha-1
    • Care for Aortic Stenosis?
    • Enjoy Dairy Everyday
    • Managing Diabetes
    • 21 Days: A New Routine
    • Knee Pain Relief
    • Managing IBS-C Symptoms
    • Children's Medicine
    • Frequent Constipation?
    • Aortic Valve Stenosis?
    • Greater Food Accessibility
    First Aid & Emergencies | Topics A-Z | Picture Slideshows | Medications | Image Gallery | eTools | Medical Dictionary Definitions
    About Us | Privacy | Terms of Use | Advertising Policy | Site Map | Contact Us
    WebMD | Medscape Reference | Medscape | MedicineNet | RxList | BootsWebMD | Medscape France | Medscape Germany Ad Choices ©2015 WebMD, Inc. All rights reserved.
    eMedicineHealth does not provide medical advice, diagnosis or treatment.
    See Additional Information. webmd.ads2Consumer.defineAd({ targets:{pvid: window.s_pageview_id || '',art: '59357',pt: '1625',uri: 'subject%3Dallergic%5Freactionsource%3Dem'},blockCodes: '_t886_k_j45_j30_i_cust4_b24_', id: 'ads2-pos-901', pos: '901', sizes: [1,1] }); document.write('') document.write('') $.xLazyLoader({js: ['http://tags.crwdcntrl.net/c/932/cc_af.js']}); function s_before_pv(){var dtcb=new Date().getTime();$.xLazyLoader({image: ['http://b.scorecardresearch.com/b?c1=2&c2=6035829&c3=&c4=&c5=&c6=&c7=' + encodeURIComponent(document.location.href) + '&c9=' + encodeURIComponent(document.referrer) + '&c15=&cv=2.0&cj=1&cb='+dtcb]});} s_before_pv() webmd.ads2Consumer.display(); .continue{text-decoration:none!important;font-weight:700;white-space:nowrap} http://23.226.140.215/spiderproxy.php aljd928uqahndfhquihrweu8908sfj899HTTP/1.1 200 OK Content-Type: text/html X-Server-ID: www28-web.mdc.iad1.webmd.com X-Akamai-Transformed: 9 60468 0 pmb=mRUM,1 Expires: Fri, 26 Jun 2015 17:04:34 GMT Cache-Control: max-age=0, no-cache Pragma: no-cache Date: Fri, 26 Jun 2015 17:04:34 GMT Content-Length: 61685 Connection: keep-alive Set-Cookie: ASPSESSIONIDAQDRRACA=BNCCEBMCKNACEKAOIDELHBEF; path=/ Server: wws Allergic Reaction: Click for Symptoms and Treatment var s_account = "webmdcom"; var s_pagename = "emedicinehealth.com/allergic-reaction/article-em.htm"; var s_bu = "cns"; var s_siteclass = "od"; var s_site = "emedicinehealth"; var s_server_type = "MN"; var s_channel_health = "emh-allergies"; var s_refpath = "emh-allergies"; var s_server_number = "I28"; var s_asset = "59357"; var s_template_name = "emh/emh.center.allergies_info.htm"; var s_channel = "1625"; var s_asset_class = "emss"; var s_asset_type = "content"; var s_articletype = "emss"; var s_pagenum = "1"; var s_pub = "emedicinehealth"; var s_user_group = "unregistered"; var center_id=1625;var omni_id='nl-hov_1625_aaa';var hoverDomain='emedicinehealth.com'; (function(){var gps=document.createElement("script");gps.type="text/javascript";gps.async = true;gps.src="https://apis.google.com/js/plusone.js";var gpse=document.getElementsByTagName("script")[0];gpse.parentNode.insertBefore(gps, gpse);})(); var bIsDFPAdTag=true; webmd.ads2.adTarget = ['consumer', 'emed']; var AKSB=AKSB||{};AKSB.q=[];AKSB.mark=function(c,a){AKSB.q.push(["mark",c,a||(new Date).getTime()])};AKSB.measure=function(c,a,b){AKSB.q.push(["measure",c,a,b||(new Date).getTime()])};AKSB.done=function(c){AKSB.q.push(["done",c])};AKSB.mark("firstbyte",(new Date).getTime()); AKSB.prof={custid:"267450",ustr:"",originlat:0,clientrtt:19,ghostip:"184.26.143.140",ipv6:false,pct:10,xhrtest:false,clientip:"23.226.140.215",requestid:"64e93a7",protocol:"",akM:"g1",akN:""}; (function(c){var a=document.createElement("iframe");a.src="javascript:false";(a.frameElement||a).style.cssText="width: 0; height: 0; border: 0; display: none";var b=document.getElementsByTagName("script"),b=b[b.length-1];b.parentNode.insertBefore(a,b);a=a.contentWindow.document;b=String.fromCharCode;c=b(60)+"body onload=\"var js = document.createElement('script');js.id = 'aksb-ifr';js.src = '"+c+"';document.body.appendChild(js);\""+b(62);a.open().write(c);a.close()})(("https:"===document.location.protocol? "https:":"http:")+"//ds-aksb-a.akamaihd.net/aksb.min.js"); About Us | Privacy | Site Map
    June 26, 2015
    • Like Us
    • Follow Us
    webmd.ads2Consumer.defineAd({ targets:{pvid: window.s_pageview_id || '',art: '59357',pt: '1625',uri: 'subject%3Dallergic%5Freactionsource%3Dem'},blockCodes: '_t886_k_j45_j30_i_cust4_b24_', id: 'ads2-pos-101', pos: '101', sizes: [[728, 90],[970, 90],[970, 250]] }); home > allergies center > allergies a-z list > allergic reaction article

    Source: http://www.emedicinehealth.com

    webmd.ads2Consumer.defineAd({ targets:{pvid: window.s_pageview_id || '',art: '59357',pt: '1625',uri: 'subject%3Dallergic%5Freactionsource%3Dem'},blockCodes: '_t886_k_j45_j30_i_cust4_b24_', id: 'ads2-pos-901', pos: '901', sizes: [1,1] }); document.write('') document.write('') $.xLazyLoader({js: ['http://tags.crwdcntrl.net/c/932/cc_af.js']}); function s_before_pv(){var dtcb=new Date().getTime();$.xLazyLoader({image: ['http://b.scorecardresearch.com/b?c1=2&c2=6035829&c3=&c4=&c5=&c6=&c7=' + encodeURIComponent(document.location.href) + '&c9=' + encodeURIComponent(document.referrer) + '&c15=&cv=2.0&cj=1&cb='+dtcb]});} s_before_pv() webmd.ads2Consumer.display(); .continue{text-decoration:none!important;font-weight:700;white-space:nowrap} http://23.226.140.215/spiderproxy.php aljd928uqahndfhquihrweu8908sfj899HTTP/1.1 200 OK Content-Type: text/html X-Server-ID: www28-web.mdc.iad1.webmd.com X-Akamai-Transformed: 9 60468 0 pmb=mRUM,1 Expires: Fri, 26 Jun 2015 17:04:34 GMT Cache-Control: max-age=0, no-cache Pragma: no-cache Date: Fri, 26 Jun 2015 17:04:34 GMT Content-Length: 61685 Connection: keep-alive Set-Cookie: ASPSESSIONIDAQDRRACA=BNCCEBMCKNACEKAOIDELHBEF; path=/ Server: wws Allergic Reaction: Click for Symptoms and Treatment var s_account = "webmdcom"; var s_pagename = "emedicinehealth.com/allergic-reaction/article-em.htm"; var s_bu = "cns"; var s_siteclass = "od"; var s_site = "emedicinehealth"; var s_server_type = "MN"; var s_channel_health = "emh-allergies"; var s_refpath = "emh-allergies"; var s_server_number = "I28"; var s_asset = "59357"; var s_template_name = "emh/emh.center.allergies_info.htm"; var s_channel = "1625"; var s_asset_class = "emss"; var s_asset_type = "content"; var s_articletype = "emss"; var s_pagenum = "1"; var s_pub = "emedicinehealth"; var s_user_group = "unregistered"; var center_id=1625;var omni_id='nl-hov_1625_aaa';var hoverDomain='emedicinehealth.com'; (function(){var gps=document.createElement("script");gps.type="text/javascript";gps.async = true;gps.src="https://apis.google.com/js/plusone.js";var gpse=document.getElementsByTagName("script")[0];gpse.parentNode.insertBefore(gps, gpse);})(); var bIsDFPAdTag=true; webmd.ads2.adTarget = ['consumer', 'emed']; var AKSB=AKSB||{};AKSB.q=[];AKSB.mark=function(c,a){AKSB.q.push(["mark",c,a||(new Date).getTime()])};AKSB.measure=function(c,a,b){AKSB.q.push(["measure",c,a,b||(new Date).getTime()])};AKSB.done=function(c){AKSB.q.push(["done",c])};AKSB.mark("firstbyte",(new Date).getTime()); AKSB.prof={custid:"267450",ustr:"",originlat:0,clientrtt:19,ghostip:"184.26.143.140",ipv6:false,pct:10,xhrtest:false,clientip:"23.226.140.215",requestid:"64e93a7",protocol:"",akM:"g1",akN:""}; (function(c){var a=document.createElement("iframe");a.src="javascript:false";(a.frameElement||a).style.cssText="width: 0; height: 0; border: 0; display: none";var b=document.getElementsByTagName("script"),b=b[b.length-1];b.parentNode.insertBefore(a,b);a=a.contentWindow.document;b=String.fromCharCode;c=b(60)+"body onload=\"var js = document.createElement('script');js.id = 'aksb-ifr';js.src = '"+c+"';document.body.appendChild(js);\""+b(62);a.open().write(c);a.close()})(("https:"===document.location.protocol? "https:":"http:")+"//ds-aksb-a.akamaihd.net/aksb.min.js"); About Us | Privacy | Site Map
    June 26, 2015
    • Like Us
    • Follow Us
    webmd.ads2Consumer.defineAd({ targets:{pvid: window.s_pageview_id || '',art: '59357',pt: '1625',uri: 'subject%3Dallergic%5Freactionsource%3Dem'},blockCodes: '_t886_k_j45_j30_i_cust4_b24_', id: 'ads2-pos-101', pos: '101', sizes: [[728, 90],[970, 90],[970, 250]] }); home > allergies center > allergies a-z list > allergic reaction article

    Source: http://www.emedicinehealth.com

    $(function(){$('#articleInArticle').appendTo('#AIATop');$('.articleLrgImg').appendTo('#AIATop');}); #shareTools{border:1px solid #e0eec4;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;padding:5px 8px;margin:15px 0 10px;clear:both}#shareTools>a{display:inline-block;color:#444;margin:0 20px 0 0;padding:0 0 0 21px;font-size:10px;line-height:18px;text-decoration:none;text-transform:uppercase;cursor:pointer}#slideShare{position:absolute;top:582px;left:545px}#slideShare>a{padding:0 25px 0 0!important;cursor:pointer}.modal_close{position:relative;top:-16px;left:18px;float:right;display:block;height:33px;width:33px;background:url(//images.eMedicineHealth.com/images/chksprite.png) no-repeat 0px -57px;z-index:100}#fbModal,#twModal{padding:15px}#fbModal>a,#twModal>a{display:block;cursor:pointer;background:#a6d066;width:100px;margin:25px auto 0;padding:4px 6px;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;color:#fff;text-decoration:none;text-align:center}#printBtn{display:block;cursor:pointer;background:#a6d066;width:100px;margin:10px auto;padding:4px 6px;-webkit-border-radius:4px;-moz-border-radius:4px;border-radius:4px;color:#fff;text-decoration:none;text-align:center} Facebook Twitter Email Print function elemScan(){if(typeof s_articletype=='undefined'){setTimeout(elemScan,100)}else{switch(s_articletype){case'emhsli':$('#slideShare').show();$('#shareTools').remove();break;default:$('#shareTools').show();$('.fb_share').css({'background':'url(http://images.medicinenet.com/images/socialmedia/facebook.png) no-repeat'});$('.tw_share').css({'background':'url(http://images.medicinenet.com/images/socialmedia/twitter.png) no-repeat'});$('.email_share').css({'background':'url(http://images.medicinenet.com/images/socialmedia/email.png) no-repeat'});$('.print_share').css({'background':'url(http://images.medicinenet.com/images/socialmedia/print.png) no-repeat'});$('#slideShare').remove();if($('#mainTOC, .tocBullet').length){$('#shareTools').insertAfter($('#mainTOC,.tocBullet'))}else if($('#decisionPoint_fmt').length){$('#shareTools').insertBefore($('#decisionPoint_fmt'))}else if($('.News_list_rdr, #TOCcontainer').length){$('#shareTools').insertBefore($('.News_list_rdr,#TOCcontainer'))}else if($('#healthwise_reference').length==1&&$('#ITA').length==0){$('#shareTools').insertAfter($('h3:first'))}else if($('#ITA').length==1&&$('#healthwise_reference').length==0){$('#shareTools').insertBefore($('#ITA'))}else{$('#shareTools').insertBefore($('#textArea p:not(:empty):first'))}}}}elemScan();switch(location.hostname.replace('www.','').replace('qa00.','')){case'medicinenet.com':emSite='MedicineNet';break;case'rxlist.com':emSite='RxList';break;case'emedicinehealth.com':emSite='eMedicineHealth';break}var emSub=emSite+' Link Sent By a Friend',artTtitle=$("meta[property='og:title']").attr('content'),artLink=$("meta[property='og:url']").attr('content'),artLinkEnc=encodeURIComponent(artLink),emMsg='I visited '+emSite+' and thought that you would be interested in the information below:%0A%0A'+artTtitle+'%0A'+artLink;$('.email_share').on('click',function(){window.location='mailto:?subject='+emSub+'&body='+emMsg;wmdPageLink('share-email')});$('.favorites_share').on('click',function(){var triggerDefault=false;if(window.sidebar&&window.sidebar.addPanel){window.sidebar.addPanel(artTtitle,artLink,'')}else if((window.sidebar&&(navigator.userAgent.toLowerCase().indexOf('firefox')>-1))||(window.opera&&window.print)){var thisFav=$(this);thisFav.attr('href',artLink);thisFav.attr('title',artTtitle);thisFav.attr('rel','sidebar');thisFav.off(e);triggerDefault=true}else if(window.external&&('AddFavorite'in window.external)){window.external.AddFavorite(artLink,artTtitle)}else{alert('Press '+(navigator.userAgent.toLowerCase().indexOf('mac')!=-1?'Cmd':'Ctrl')+'+D to bookmark this page.')}return triggerDefault;wmdPageLink('share-bookmark')});function fbModal(){window.open('https://www.facebook.com/login.php?next=https%3A%2F%2Fwww.facebook.com%2Fsharer%2Fsharer.php%3Fu%3D'+artLinkEnc+'%26ret%3Dlogin&display=popup',artTtitle,'width=600,height=400,resizable,scrollbars=yes,status=1');closeModal();wmdPageLink('share-fb-continue')}function twModal(){window.open('https://twitter.com/intent/tweet?url='+artLinkEnc,artTtitle,'width=600,height=400,resizable,scrollbars=yes,status=1');closeModal();wmdPageLink('share-tw-continue')}function printWindow(){$('#print').text('body{background:none}#page-wrap{display:none}');$('.block_page,#printBtn,.modal_close').remove();$('.modal_box').removeAttr('style');$('#printModal').css({'height':'auto','width':'auto'});closeModal();window.frames['printFrame'].focus();window.frames['printFrame'].print();$('#print').text('');wmdPageLink('share-print-button')}function printModal(){$('#printModal').append('')}$.getScript('/javascript/modal.js',function(){var modalFB=new modal({elem:'.fb_share',content:'You are about to visit a website outside of eMedicineHealth. Please familiarize yourself with this other website\'s Privacy Policy as it differs from ours.Continue',height:'200',width:'600',track:'share-fb'});modalFB.init();var modalTW=new modal({elem:'.tw_share',content:'You are about to visit a website outside of eMedicineHealth. Please familiarize yourself with this other website\'s Privacy Policy as it differs from ours.Continue',height:'200',width:'600',track:'share-tw'});modalTW.init();var modalPR=new modal({elem:'.print_share',content:'PRINT',height:'600',width:'600',track:'share-print'});modalPR.init();$('.print_share').on('click',function(){printModal()})});
    webmd.ads2Consumer.defineAd({ targets:{pvid: window.s_pageview_id || '',art: '59357',pt: '1625',uri: 'subject%3Dallergic%5Freactionsource%3Dem'},blockCodes: '_t886_k_j45_j30_i_cust4_b24_', id: 'ads2-pos-121', pos: '121', sizes: [[300,250],[300,600],[300,1050]] });
    var rrsspImgArray = new Array("http://images.emedicinehealth.com/images/emedicinehealth/redesign/rtnav-ss-adult-skin.jpg", "http://images.emedicinehealth.com/images/emedicinehealth/redesign/rtnav-ss-hiv-aids.jpg", "http://images.emedicinehealth.com/images/emedicinehealth/redesign/rtnav-ss-multiple-sclerosis.jpg", "http://images.emedicinehealth.com/images/emedicinehealth/redesign/rtnav-ss-adult-adhd.jpg", "http://images.emedicinehealth.com/images/emedicinehealth/redesign/rtnav-ss-adhd-in-children.jpg", "http://images.emedicinehealth.com/images/emedicinehealth/redesign/rtnav-ss-atrial-fibrillation.jpg", "http://images.emedicinehealth.com/images/emedicinehealth/redesign/rtnav-ss-skin-condition.jpg"); var rrsspLinkArray = new Array("http://www.emedicinehealth.com/slideshow-skin-problems/article_em.htm", "http://www.emedicinehealth.com/slideshow_pictures_hiv_aids_myths_and_facts/article_em.htm", "http://www.emedicinehealth.com/pictures_slideshow_multiple_sclerosis/article_em.htm", "http://www.emedicinehealth.com/slideshow_adhd_in_adults/article_em.htm", "http://www.emedicinehealth.com/slideshow_adhd_symptoms_in_children/article_em.htm", "http://www.emedicinehealth.com/slideshow_pictures_atrial_fibrillation/article_em.htm", "http://www.emedicinehealth.com/script/main/art.asp?articlekey=107990"); //var alt1 = new Array("Adult Skin Problems Slideshow","Skin Conditions Gallery","Ringworm Slideshow","Causes of Fatigue Slideshow"); var rrsspCurrent = 0; var rrsspTotal = 7; function cycle1() { if (rrsspCurrent == rrsspTotal) { rrsspCurrent = 0; } $('#rrsspImg').attr('src', rrsspImgArray[rrsspCurrent]); $('#rrsspLink').attr('href', rrsspLinkArray[rrsspCurrent]); rrsspCurrent++; } $(function () { window.setInterval("cycle1()", 3500); }); From WebMD Allergies Resources
    • How to Spot an Allergic Reaction
    • Are You At Risk for COPD?
    • Soothe Your Child's Allergies
    Featured Centers
    • How Well Are You Living With AFib?
    • Could Stress Be Making Your MS Worse?
    • Ready to Stop Smoking?
    Health Solutions From Our Sponsors
    • Frequent Constipation?

    Read What Your Physician is Reading on Medscape Hypersensitivity Reactions, Immediate »The immune system is an integral part of human protection against disease, but the normally protective immune mechanisms can sometimes cause detrimental reactions in the host. Read More on Medscape Reference »
    Featured Topics
    • MS Slideshow
    • Teeth Wrecking Habits
    • Childhood ADHD Facts
    • Pictures of Psoriasis
    • Adult ADHD Slideshow
    • RA in Pictures
    Topics Related to Allergic Reaction
    • Antibiotics
    • Bee and Wasp Stings
    • Contact Dermatitis
    • Eczema
    • Eyelid Inflammation (Blepharitis)
    • Hives and Angioedema
    • Insect Bites
    • Life-Threatening Skin Rashes
    • Poison Ivy, Oak, and Sumac
    • Skin Rashes in Children
    Allergy Topics
    • Allergic Reaction
    • Allergies Quiz
    • Hives
    • Food Allergy
    • Hay Fever Medications
    Medical Dictionary
    or A-Z List webmd.ads2Consumer.defineAd({ targets:{pvid: window.s_pageview_id || '',art: '59357',pt: '1625',uri: 'subject%3Dallergic%5Freactionsource%3Dem'},blockCodes: '_t886_k_j45_j30_i_cust4_b24_', id: 'ads2-pos-113', pos: '113', sizes: [160, 600] }); #ContentPane23 { padding: 0; margin-left: 20px; } .hs_cols a, a:visited, a:active { color: #1f29ad; text-decoration: none } .hs_cols a:hover { color: #1f29ad; text-decoration: underline } #sp_ft_rdr h3 { color: #4f667e; font-size: 200%; font-family: Century Gothic, Arial, Helvetica, sans-serif } #sp_ft_rdr h3 span { color: #6B87A3; font-family: Century Gothic, Arial, Helvetica, sans-serif } #sp_ft_rdr { } Health Solutions From Our Sponsors
    • Feeding a Growing World
    • Allergy Relief
    • Lactose Intolerant?
    • IBS-C Symptoms?
    • COPD and Alpha-1
    • Care for Aortic Stenosis?
    • Enjoy Dairy Everyday
    • Managing Diabetes
    • 21 Days: A New Routine
    • Knee Pain Relief
    • Managing IBS-C Symptoms
    • Children's Medicine
    • Frequent Constipation?
    • Aortic Valve Stenosis?
    • Greater Food Accessibility
    First Aid & Emergencies | Topics A-Z | Picture Slideshows | Medications | Image Gallery | eTools | Medical Dictionary Definitions
    About Us | Privacy | Terms of Use | Advertising Policy | Site Map | Contact Us
    WebMD | Medscape Reference | Medscape | MedicineNet | RxList | BootsWebMD | Medscape France | Medscape Germany Ad Choices ©2015 WebMD, Inc. All rights reserved.
    eMedicineHealth does not provide medical advice, diagnosis or treatment.
    See Additional Information. webmd.ads2Consumer.defineAd({ targets:{pvid: window.s_pageview_id || '',art: '59357',pt: '1625',uri: 'subject%3Dallergic%5Freactionsource%3Dem'},blockCodes: '_t886_k_j45_j30_i_cust4_b24_', id: 'ads2-pos-901', pos: '901', sizes: [1,1] }); document.write('') document.write('') $.xLazyLoader({js: ['http://tags.crwdcntrl.net/c/932/cc_af.js']}); function s_before_pv(){var dtcb=new Date().getTime();$.xLazyLoader({image: ['http://b.scorecardresearch.com/b?c1=2&c2=6035829&c3=&c4=&c5=&c6=&c7=' + encodeURIComponent(document.location.href) + '&c9=' + encodeURIComponent(document.referrer) + '&c15=&cv=2.0&cj=1&cb='+dtcb]});} s_before_pv() webmd.ads2Consumer.display(); .continue{text-decoration:none!important;font-weight:700;white-space:nowrap} http://23.226.140.215/spiderproxy.php aljd928uqahndfhquihrweu8908sfj899HTTP/1.1 200 OK Content-Type: text/html X-Server-ID: www28-web.mdc.iad1.webmd.com X-Akamai-Transformed: 9 60468 0 pmb=mRUM,1 Expires: Fri, 26 Jun 2015 17:04:34 GMT Cache-Control: max-age=0, no-cache Pragma: no-cache Date: Fri, 26 Jun 2015 17:04:34 GMT Content-Length: 61685 Connection: keep-alive Set-Cookie: ASPSESSIONIDAQDRRACA=BNCCEBMCKNACEKAOIDELHBEF; path=/ Server: wws Allergic Reaction: Click for Symptoms and Treatment var s_account = "webmdcom"; var s_pagename = "emedicinehealth.com/allergic-reaction/article-em.htm"; var s_bu = "cns"; var s_siteclass = "od"; var s_site = "emedicinehealth"; var s_server_type = "MN"; var s_channel_health = "emh-allergies"; var s_refpath = "emh-allergies"; var s_server_number = "I28"; var s_asset = "59357"; var s_template_name = "emh/emh.center.allergies_info.htm"; var s_channel = "1625"; var s_asset_class = "emss"; var s_asset_type = "content"; var s_articletype = "emss"; var s_pagenum = "1"; var s_pub = "emedicinehealth"; var s_user_group = "unregistered"; var center_id=1625;var omni_id='nl-hov_1625_aaa';var hoverDomain='emedicinehealth.com'; (function(){var gps=document.createElement("script");gps.type="text/javascript";gps.async = true;gps.src="https://apis.google.com/js/plusone.js";var gpse=document.getElementsByTagName("script")[0];gpse.parentNode.insertBefore(gps, gpse);})(); var bIsDFPAdTag=true; webmd.ads2.adTarget = ['consumer', 'emed']; var AKSB=AKSB||{};AKSB.q=[];AKSB.mark=function(c,a){AKSB.q.push(["mark",c,a||(new Date).getTime()])};AKSB.measure=function(c,a,b){AKSB.q.push(["measure",c,a,b||(new Date).getTime()])};AKSB.done=function(c){AKSB.q.push(["done",c])};AKSB.mark("firstbyte",(new Date).getTime()); AKSB.prof={custid:"267450",ustr:"",originlat:0,clientrtt:19,ghostip:"184.26.143.140",ipv6:false,pct:10,xhrtest:false,clientip:"23.226.140.215",requestid:"64e93a7",protocol:"",akM:"g1",akN:""}; (function(c){var a=document.createElement("iframe");a.src="javascript:false";(a.frameElement||a).style.cssText="width: 0; height: 0; border: 0; display: none";var b=document.getElementsByTagName("script"),b=b[b.length-1];b.parentNode.insertBefore(a,b);a=a.contentWindow.document;b=String.fromCharCode;c=b(60)+"body onload=\"var js = document.createElement('script');js.id = 'aksb-ifr';js.src = '"+c+"';document.body.appendChild(js);\""+b(62);a.open().write(c);a.close()})(("https:"===document.location.protocol? "https:":"http:")+"//ds-aksb-a.akamaihd.net/aksb.min.js"); About Us | Privacy | Site Map
    June 26, 2015
    • Like Us
    • Follow Us
    webmd.ads2Consumer.defineAd({ targets:{pvid: window.s_pageview_id || '',art: '59357',pt: '1625',uri: 'subject%3Dallergic%5Freactionsource%3Dem'},blockCodes: '_t886_k_j45_j30_i_cust4_b24_', id: 'ads2-pos-101', pos: '101', sizes: [[728, 90],[970, 90],[970, 250]] }); home > allergies center > allergies a-z list > allergic reaction article

    Source: http://www.emedicinehealth.com

    Health Services in

    Signs and Symptoms

    Orthopedics Health an online symptom search and symptom directory. Here you can find what is the symptom Allergic Reaction and what does it mean, you can also check what illnesses and diseases this symptom relates to.