for warts, cover them in duct tape...i think it smothers them.
my dad said that when he was young and they would get ringworm or any other fungus, my grandmother would get a black walnut, smash it up, and put it on top of the infected area. he said it worked everytime. whenever i got an earache, my uncle would blow some tobacco smoke from his pipe into my ear. i swear it worked like a charm everytime!