I got ringworm from my cat, and I've gone through at least 2-3 cycles of infection now over a period of 2 months. I tried anti-fungal creams. Since it's in Korean and my doctor has limited English, I wasn't sure what the active ingredients were. But I tried 2-3 different types of creams and none helped, one even made it much worse. I even desperately tried bleach... Very bad idea. Wounds festered. I tried apple cider vinegar-much the same as the bleach.
What works: Use bar soap, lather well so that a thick white foam appears over all ringworm spots, let air dry for about 10-20 minutes, gently rinse. Repeat at least 2x/day. I'm doing this plus taking anti-fungal pills once a week. I've ordered Absorbine Jr. at the recommendation of this site. I intend to apply that as well, but it is not available in Korea and I've had to order it online.