I have used black salve successfully on many different skin lesions, as well as moles. Two years ago I had an initial, very painful outbreak of shingles on my chest. After several days of suffering I decided to try black salve on the blisters. At first it hurt like heck, but it hurt anyway. By the next day the pain and itching were gone. It took a long time to heal completely, and a couple more spots appeared in the area along the way (which I treated also), but the pain was gone and it eventually healed nicely. I still have scars, but no more problems since.
I haven't seen any other postings for using it on shingles, so I thought someone might find it helpful.