i had a weeping rash (that may have been caused by contact with a Woolly Nightshade plant) which was spreading from my wrist to my elbow over the 6 months it was being treated using Dermol. I then visited one of the top skin specialists in New Zealand who told me that was the best they could do and that it appeared to be clearing!
A friend said he believed that my body did not realise there was a problem so he told me to stop the Dermol and apply Molkosan (highly-concentated fermented whey) in order to burn the skin so that the body would respond. The rash was gone in a week (so i didn't have to amputate at the elbow!) and I received a refund from the skin expert.
My friend said the same treatment fixed his all-over psoriasis.

link to photo of rash: