I have been using apple cider vinegar to treat ringworm on my leg. I tried lamisil, but it just seemed to make the area hot and more irritated. In addition I have used coconut oil. I apply the apple cider vinegar twice a day with a cotton swab...almost 4 ounces a day on an area about 4"x4". I apply coconut oil once a day in the evening to the area. I keep the area of my leg covered when out in the sun and working in the heat of the day. It is clearing up much more quickly than using the over the counter remedy.