Biopsy of skin irritation on butt indicate psoriasis. Rule out bacteria, rule out fungus
, rule out herpes. Doctor prescribed Fluocinonide and Triamcinolone Acetonide. Irritated skin heals after a couple weeks, but area around anus is very sensitive, and when wiping etc gets sore. Doctor then prescribed Nystatin and Triamcinolone Acetonide (combo drug), and says to use for a couple weeks, directly applying to anus area (the orig. problem is not a factor at this point).