severe allergy
- anaphylaxisSevere systemic allergic reaction
- hivesRaised itchy skin reaction
- swellingAbnormal tissue enlargement
- epinephrineAdrenal stress hormone
- EpiPenBrand-name anaphylaxis injector
rash · throat · breathing · histamine · reaction · peanut · shellfish · bee sting · itching · wheeze · antihistamine · emergency · hospital · sensitivity · intolerance · immunoglobulin · trigger · exposure