The fastest way to kill tinea (ringworm) is typically through oral antifungal medication prescribed by a doctor, taken for a period of weeks or months.
While topical treatments like antifungal creams are effective for many cases of tinea corporis (body ringworm), oral medications tend to be more potent and can address the infection more quickly and comprehensively, especially for nail infections or widespread cases. Medicated nail lacquers may also be helpful in some instances. The specific medication and duration of treatment will depend on the type and severity of the tinea infection and should be determined by a healthcare professional.