Thanks for all of your replies. I think that Debbie's idea sounds great because I don't have the time to scrub litter boxes every day. I e-mailed Starr's foster mom and one of her other kittens has ringworm but he's been in with both of his brothers and they don't have it. She's offered to treat Starr for me so depending on what the vet says, I may take her up on the offer since I'm going to be out of town from Fri. afternoon to Sun. night. I sure hope that I haven't caught it. I'll update you as soon as I know anything.