Abstract
Insect stings occur commonly, with clinical responses ranging from mild local reactions to life-threatening anaphylaxis. Stings from Hymenoptera (yellow jackets, hornets, wasps, honey bees, and imported fire ants) account for the majority of severe allergic reactions to insects. Patients who present with a systemic reaction should receive emergency therapy and be provided with self-injectable epinephrine (Epi-Pen®) until definitive treatment can be provided. Anaphylactic symptoms and hypotension may be prominent in persons taking beta adrenergic blockers and may necessitate vigorous treatment. The diagnosis of Hymenoptera hypersensitivity can be established by venom skin testing. In more than 95% of cases, immunotherapy with specific venom is effective in preventing subsequent systemic reactions to Hymenoptera stings.
