You're younger than I am. We just burned it off with bleach back in the day. It's easier to cure on humans than animals though. Since it.feeds on hair and skin it's much harder to rid animals of it.Ring worm. I always used when working at the vet clinic betadine on cotton balls to scrub area at least 2 times a day. Yes nu stock will work too but it was just an old fashion habit back then. Never used nu stock on it myself. Just remember to wear gloves as it can transfer to you when treating. I got it once from a horse at the clinic.