Urticaria Day (UDAY) 2025
AAFA joins We CU, and The Mast Cell Disease Society (TMS) in recognizing Urticaria Day (UDAY) on October 1, 2025. What is urticaria (hives)? Hives (urticaria) are a type of swelling of the skin and are a common symptom of allergic reactions. Hives are itchy, raised bumps, called welts or wheals, on the skin. They […]








