Hi
I have seborrhoeic dermatitis in the form of dandruff, but it also creates scaly patches on my forehead and beside my nose. I find that dabbing it with a cotton swab dipped in rubbing alcohol makes it go away. I mix the alcohol half and half with water sometimes and sometimes use it right out of the bottle. And it stays away for about a week. Apple cider vinegar works also - mix it half and half with water or one quarter vinegar with water and use that on your skin. That works too, bu sometimes you can smell the vinegar.