real simple, I catch it early and cover it with dish soap in the evening and morning. you heard me. regular 'ol soap, can be dish soap, hand cleanser, anything of the sort.

This method really SUCKS if you wait to do it. the soap naturally dry's out the skin, so just apply a very very light layer. I have used this method on jock itch, athletes foot AND ringworm, its common sense really, they're fungus's, something antibacterial will take them out perty darn quick.

don't apply to much, ESPECIALLY if you have let the itch go and get bad.. the dryness is compounded by the damage the fungus is doing.

there's my 2 cents on a cheap effective way to battle them :D