I know this was posted months ago.. but just wanted to say that I had very bad long term dealings with ringworm which was all over my body and would not go away via any of the topical stuff.. BUT it did finally go away through INTERNAL Iodine supplementation. In fact it went away very quickly with a high dose of iodine. Apparently skin issues like ringworm can be due to an undetected low thyroid condition and Iodine supplementation can be very beneficial! Just wanted to let you know in case you didn't! Cause mine came back when I went off the Iodine but then cleared again when I got back on it. :^)