Help! Almost two years ago, hubs began having an itchy rash. The only thing that calms it is taking steroids, not good. It's been a tossup whether it's a dermatological or an allergy problem. He's seen two dermatologists who've biopsied and found nothing. Also, full battery of allergy tests and is allergic to a lot, soy in particular. It's said that the rash is possibly a form of psoriasis that lasts 2-5 years. When it's full bore he scratches while asleep and wakes up bleeding. Any help would be appreciated...thank you...