While combing my son's hair, I noticed red small rings on his scalp. They were ringworm. He is 17. I marked all of them w/sharpie dot so I could find them and treat them. I followed another EC remedy of 90% rubbing alcohol. I put a hair dryer to each spot, warmed it up and they come to the surface, then used a qtip and put on hydrogen peroxide first, then used a qtip saturated with rubbing alcohol. Do it 2 times a day, it bled a little that was ok, and after a couple of days, 1 was gone, but had to work on a stubborn one. It is almost gone. Forget the expensive cream "Lotrimin", stop giving money to the pharma criminals, and use a simple qtip with 90 percent rubbing alcohol. IT WORKS!!!