Nothing seems to cure my ring worm...why? I keep it dry as possible. I use Lotrimin cream for 5 weeks now and it still itches and it seems to get a little worse. Click on my blog for pictures
http://skin-issues.blogspot.com/
http://skin-issues.blogspot.com/
This may sound insane but, I am from the old school of hard knocks and home remedys where we played and got really dirty, so those who got wringed worm usually got treated with a solution of bleach and water. About 75% bleach and 25% water - applied directly to the effected area twice a day for about 3 - 5 days. It cleared us up and it should work for you. Good Luck!