I had ringworm when I was a kid and the dr tried everything too. A very dear grandma told my Mom to soak tobacco in water, (keep it in a jar) then 3x a day put the ringworms, discard the stuff after you use it. I know it sounds gross, but it really worked for me. I will get my old remedy/cookbook from the Presidents Wives and look up some more on it (this has all kinds of stuff in it). Marie and her 6 kidlets [Posted in FML issue 2640]