Q: How should ringworm be treated?

Answer: In dealing with the infection, it is important to have all cars on the premise checked and to isolate infected individuals. All contaminated articles should preferably be burned, and all surface should be disinfected. Efficient disinfectants include solutions of iodophors (e.g. Pyridine), or formalin. For disinfecting small articles, alcohol may be used.

The disease hairs on infected cat should be closely clipped away and burned; but always sterilize the clippers afterwards. Fungicidal shampoos or cream may then be applied. However, these measures should always be combined with four to six weeks or oral dosing with the anti-fungal antibiotic griseofulvin. The drug becomes concentrated in the keratin of the new hairs as they grow, rendering them resistant to fungal attack. Feeding oily food at the same time as griseofulvin is given enhance its absorption. However, it should not be given to pregnant cats because it can produce deformities in the developing kittens, i.e. teratogenic.

If any other animals, or person, in a household with a known infected cat develop itchy lesion on the skin, appropriate veterinary or medical attention should be sought.