I have recently broken out with hard itchy hives, that turn into crusted over lesions. They started on my right arm and hsve spread over back, chest, neck, and right arm. Some also down the side of both legs. It was first thought to be some sort of allergic reaction but after 6 weeks of unsuccessful photo therapy, it has been determined to be an auto immune rash. They are leaving ugly scars and nothing seems to get rid of them. Any suggestions are greatly appreciated.