mimi
It sounds like you have eczema. There are several different kinds, which require different treatment. Don't worry, it is not contagious. It's more like an allergic reaction. Don't wear wool. Try washing your clothes in a very mild detergent and don't use anything but a very mild soap on the rash. Try not to scratch it, that just makes it worse. You can buy a cortisone-based cream at the pharmacy. Ask the pharmacist. If that doesn't help, ask a doctor to prescribe something stronger.