Im 17 about to be 18 and I have had a rash on my legs for the last six months. It started out as just a circular rash on my right calf and I thought it was just exima bucause I've had a problem with it my whole life. but then it spread all over my leg then to the other and now i have a new little patch on the top inside of my left arm. they itch like crazy and sometimes i make them bleed I have tried just about every anti itch cream and lotion i could find and nothing seems to work. if anyone has any ideas of how to help me i would greatly appriciate them.