Treatment
Feline ringworm can clear up naturally in time in otherwise healthy cats, but treatment is advised to cure it earlier due to infection risks to humans and other animals. A popular treatment is to wash the cat’s whole body using a lime sulfur shampoo. Cats should ideally be bathed every four to six days for four to six weeks. The lime sulfur may cause yellowing to your cat’s fur, which will fade in time. Long haired cats may need to be clipped before treatment, and if you have a multi cat household then your other cats will need treating as well. Your cat can remain contagious for up to three weeks following treatment.

Your vet may decide to treat any existing flea and mite infections, as these could cause skin damage which would make your cat more susceptible to feline ringworm.

Anti-fungal drugs can also be used, such as Itrafungol, Griseofulvin or Terbinafine. Your vet will give you directions on how to administer these. Cats should be treated until they test negative for fungal infection; the skin will look much improved, but the ringworm may not be eliminated and can reoccur. In general, courses of treatment should be given for a minimum of six weeks.

You will also need to treat the cat’s home environment, as the fungus can live in bedding, carpets etc and could re-infect your cat.

Thoroughly clean all rooms your cat has access to; vacuum carpets and dispose of the vacuum bag, and disinfect bedding, brushes and toys. It is best to replace anything which can’t be disinfected. If you have a multi cat household, you may need to segregate infected cats until they are clear of the infection.

A bleach solution may be useful to disinfect surfaces, and commercial disinfectants are also available.

Ringworm can be passed onto humans very easily, so you should minimise manually handling your cat until she is clear. You should also discourage children from handling her.

Prevention
A vaccination to prevent feline ringworm is available, and should be given to cats over four months of age. This vaccination only protects against Microsporum Canis, as this is by far the most common form.