Anaphylaxis | Anaphylaxis

Anaphylaxis is a severe, potentially life-threatening allergic reaction. It can occur within seconds or minutes of exposure to something ...COVID-19:Advice,updatesandvaccineoptionsWeareopenforsafein-personcare.Learnmore:MayoClinicfactsaboutcoronavirusdisease2019(COVID-19)OurCOVID-19patientandvisitorguidelines,plustrustedhealthinformationLateston COVID-19vaccination bysite:ArizonapatientvaccinationupdatesArizona,FloridapatientvaccinationupdatesFlorida,RochesterpatientvaccinationupdatesRochesterandMayoClinicHealthSystempatientvaccinationupdatesMCHSSkiptositenavigationSkiptoContentThiscontentdoesnothaveanEnglishversion.ThiscontentdoesnothaveanArabicversion.SectionsforAnaphylaxisSymptoms&causesDiagnosis&treatmentDoctors&departmentsPrintOverviewAnaphylaxisisasevere,potentiallylife-threateningallergicreaction.Itcanoccurwithinsecondsorminutesofexposuretosomethingyou'reallergicto,suchaspeanutsorbeestings.Anaphylaxiscausesyourimmunesystemtoreleaseafloodofchemicalsthatcancauseyoutogointoshock—yourbloodpressuredropssuddenlyandyourairwaysnarrow,blockingbreathing.Signsandsymptomsincludearapid,weakpulse;askinrash;andnauseaandvomiting.Commontriggersincludecertainfoods,somemedications,insectvenomandlatex.Anaphylaxisrequiresaninjectionofepinephrineandafollow-uptriptoanemergencyroom.Ifyoudon'thaveepinephrine,youneedtogotoanemergencyroomimmediately.Ifanaphylaxisisn'ttreatedrightaway,itcanbefatal.Products&ServicesBook:MayoClinicFamilyHealthBook,5thEditionNewsletter:MayoClinicHealthLetter—DigitalEditionShowmoreproductsfromMayoClinicSymptomsAnaphylaxissymptomsusuallyoccurwithinminutesofexposuretoanallergen.Sometimes,however,itcanoccurahalf-hourorlongerafterexposure.Signsandsymptomsinclude:Skinreactions,includinghivesanditchingandflushedorpaleskinLowbloodpressure(hypotension)Constrictionofyourairwaysandaswollentongueorthroat,whichcancausewheezingandtroublebreathingAweakandrapidpulseNausea,vomitingordiarrheaDizzinessorfaintingWhentoseeadoctorSeekemergencymedicalhelpifyou,yourchildorsomeone

常見健康問答

延伸文章資訊
Anaphylaxis | Anaphylaxis
Anaphylaxis is a potentially life threatening, severe allergic reaction and should always be treated as a medical emergency. Anaphylaxis occurs after ...
Management of Anaphylaxis after COVID-19 Vaccination | Anaphylaxis
Anaphylaxis, an acute and potentially life-threatening allergic reaction, has been reported rarely following COVID-19 vaccination.
Allergies and Anaphylaxis | Anaphylaxis
Anaphylaxis is a severe allergic reaction that needs to be treated right away. If you have an anaphylactic reaction, you need an epinephrine ...
Anaphylaxis: Causes, Symptoms & Diagnosis | Anaphylaxis
For some people with severe allergies, exposure to their allergen can result in a life-threatening reaction called anaphylaxis. Anaphylaxis is a severe allergic ...
Anaphylaxis: Emergency treatment | Anaphylaxis
Anaphylaxis is a potentially fatal disorder that is under-recognized and undertreated. This may partly be due to failure to appreciate that ...
Anaphylaxis Symptoms, Diagnosis, Treatment & Management | Anaphylaxis
Anaphylaxis (an-a-fi-LAK-sis) is a serious, life-threatening allergic reaction. The most common anaphylactic reactions are to foods, insect stings, ...
Anaphylaxis | Anaphylaxis
Anaphylaxis is a serious allergic reaction that is rapid in onset and may cause death. It typically causes more than one of the following: an itchy rash, ...
Anaphylaxis | Anaphylaxis
Anaphylaxis is a severe, potentially life-threatening allergic reaction. It can occur within seconds or minutes of exposure to something ...
Overview | Anaphylaxis
Anaphylaxis is a severe and potentially life-threatening reaction to a trigger such as an allergy. Important: Coronavirus (COVID-19). At the moment it can be ...