There are several effective treatments for ringworm, but the fastest method of killing the infection will depend on the severity and location of the infection. Antifungal medication is typically the fastest and most effective treatment for ringworm. The medication can be applied topically or taken orally depending on the type and severity of the infection. In addition to medication, it is important to maintain good hygiene practices, keep the affected area clean and dry, and avoid sharing personal items to prevent the spread of the infection.