Eye Allergies Topic Guide
Allergic Reaction An allergic reaction is an overreaction to a harmless substance. Symptoms and signs of an allergic reaction include hives, rashes, swelling, itching, wheezing, nausea, and even anaphylactic shock in severe reactions. Treatment involves avoiding triggers, taking oral antihistamines, applying antiinflammatory steroid creams, and using an EpiPen.
Get breaking medical news.