Clobetasol
"Clobex for my skin. I can't say enough good things about this spray.  I say "spray" because the ointment did nothing.  The spray, for some reason is absolutely amazing.  One place on my knee where the P wasn't removable with a jackhammer, magically cleared up 99% of the area in less than 1 week.  My arms - my chest - EVERYTHING - it's gone.  My Psoriasis is gone.  I've gone through shampoos. 

NOW - if I stop using the spray for a week or longer, the symptoms return - but until a cure is found for Psoriasis - this medication is hands-down, the absolute best there is."