Ringworm is a 'self-limiting' disease that typically resolves on its own in otherwise healthy animals. However, this can take months, so treatment is recommended to speed up the process and to reduce the time that a dog can infect other animals or people.

Does ringworm grow if not treated?

If not treated, ringworm can spread and the skin can become irritated and painful. Skin blisters and cracks can become infected with bacteria. If this happens, you may need to take antibiotics.

Is ringworm self-limiting in cats?

How is ringworm treated? Although ringworm is a self-limiting infection in many cats, with resolution typically taking three to five months, treatment of the disease is always necessary to minimize the risk of spread of infection to humans, especially children, and other pets.