Katie, you may also want to put all of your other cats on the dog program pills just as a precaution. This is supposed to help with ringworm but you have to give them a large dose. I did this with my cats and none of them got it from Starr. Here's a link that talks about using it: Program. This talks about using it on cats that already have ringworm though. I hope this will help.

Here's the doseage that Starr's foster mom's vet gave her:
The vet gave me two different size pills. The small one is 90 mg. and the large one is 409.8 mg. The dosages they gave me were based on the weights I provided and are as follows:

17 lbs. 2 large
14 lbs. 1 1/2 large
12 lbs. 1 1/2 large
8 lbs. 1 large
3 lbs. 1/2 large
1 lb. 1/2 small

I'm supposed to give the pills with a full meal and repeat this dosage in 2 weeks. Everyone gets the same dosage except for the 1 lb. kittens who will get 1 whole small pill at that time.

Here's another website that tells more about it: Program Use. I hope that this info will help.