Can putting bleach on my skin kill the ringworm?

Yes, but DONT do it: Bleach kills a lot of bad things, but it kills good things too, like your skin cells. Dont do it. Try otc Lamisil (terbinafine) or lotrimin creams from your local drug store.

Tinea corporis: Tinea corporis (ringworm) is a fungal infection of the skin generally characterized (intially) by a red raised round patch, followed by central clearing and an advancing border. Treatment is with topical antifungals. Bleach is ineffective and not a recommended treatment for ringworm.