I had psoriasis all over my body and scalp. I saw my derm at least 12 times, had 2 biopsies, tried all kinds of prescription creams, etc. Then my husband suggested tanning. I thought, what the heck, I've tried everything else. As soon as I started tanning, my lesion went away (with the exception of my scalp). It's wonderful to have clear skin once again, however, I am left with a pins and needles feeling in my skin that neither my derm or gp can account for.