(HealthDay News) -- Hives are an allergic skin reaction caused by the body's release of histamine. The American Academy of Allergy Asthma & Immunology mentions these common causes of hives: Exposure to an allergic trigger. Eating something that triggers an allergic reaction. Exercising, or exposure to heat. Being bitten by an insect. Having an allergic reaction to a medication.
(HealthDay News) -- Hives are an allergic skin reaction caused by the body's release of histamine. The American Academy of Allergy Asthma & Immunology mentions these common causes of hives: Exposure to an allergic trigger. Eating something that triggers an allergic reaction. Exercising, or exposure to heat. Being bitten by an insect. Having an allergic reaction to a medication.