Rash from my belt buckle. A rash on my stomach right next to a fist-sized belt buckle. went to dr. O, a dermatologist, and she said I'm allergic to my belt buckle and that's a common occurrence. among men who wore belts. She recommended applying an ointment and wearing an antiallergic belt. I bought a street belt and my rash is gone. I am very happy with the Roadman and plan to purchase several more belts.