The spores of this fungus can be killed with common disinfectants like diluted chlorine bleach (1/4 c per gallon water), benzalkonium chloride, or strong detergents.

Does disinfectant spray kill ringworm?

The fungus that causes ringworm can live on surfaces and items for months. You can kill the fungus with disinfectant sprays like Lysol® or bleach. Wash clothes, sheets and towels often in hot water and detergent.

Can you disinfect ringworm?

There are a few disinfectants that have been shown to be effective against dermatophytes even when they are found on infected hairs and skin cells in the environment. The most readily available one is household bleach, used at concentrations of 1:10 to 1:100.