It does sound like a form of psoriasis to me. It can happen anywhere on the skin. I have an area on my left calf. I use cortisone 10 cream on it and it helps stop the itching and since it's a mild steroid cream, it also helps it get better and disappear. It does take some time to work, but it's worth a try! It's cheap and about the only thing I've found that works without getting a prescription cream!
