I've been very actively playing basketball for last 10 years. I joined a gym a few months back and started having hives after most workouts. My local physician gave me a preliminary diagnosis of exercise induced uritcaria. But I doubt that to be the case for two reasons: 1. As stated, have always been very active physically and never faced such an issue. 2. Hives occur even after 24-48h of workout sessions. Sometimes they run over to next day. How can it be diagnosed correctly? Is there a test? Permanent treatment? Thanks