3 weeks ago my palms and inbetween my finger were itch really bad, then my scalp started to itch, and one side of my face broke out in whelps. I went to the doctor and he gave me a steroid shot and a dose pack of predisone. Everything cleared up until one week after finishing the predisone. Now my hands fingers and scalp are itching again like crazy, but no whelps. What could be causing this, No change in soaps, detergents, shampoo etc.