I have a horse-shoe or "C" rash on my arms, chest and neck. Have had for a few days. Some are just red bumps. I have been on steriods for a few days also and it was almost cleared but came back full force today. very itchy and painful. I am an RN and have tried to diagnose myself. Also, generally feeling unwell, sore throat, achy..etc. I felt good when I first got on the steriods but feeling worse now. any suggestions?