Recently, I discovered that my son had ring worm on his arm...ugh. He kept forgetting to tell me about it, so by the time he finally thought to tell me about it, it had already spread along most of his arm.
I wasn't sure if tea tree oil would help. I had been using tea tree oil mainly for cuts to keep away infections. So, I decided it should help with my sons ring worm. I applied it directly to the affected areas. Within one day, it stopped spreading. The redness was reduced. I kept putting it on twice a day.