I've had great success curing the skin troubles of Granuloma Annulare by using DMSO topically. I apply it on a paper towel and then plastic wrap and hold in a few minutes until the burning sensation - as long as you can stand it, around 15 minutes. It's not really a burn, will subside next day. The bumps are usually gone. I had a huge ring it has mostly gotten rid of now. Will apply it when new bumps come and save myself the issue of watching these things grow large.