I have read some SP members recommend using Fluid Film ( a lubricant sold by John Deere and a few other places). We had some bulls with ringworm in our bull test and we were weighing them on Thursday and Friday of last week. At teh end of test, we weigh the bulls on two successive days and then use an average of the two days weights. We sprayed several of the bulls with the worst ringworm and I was amazed that it looked much better 24 hours later. I noticed that the Fluid Fim foamed up when it was sprayed on the ringworm and it did nothing when sprayed on normal skin and hair. It may take another treatment or two, but the improvement in 1 day was amazing.