I haven't used this myself, but a lot of guys swear this works. This way to cure foot fungus was used in soviet army. Early in the morning take a walk on a grass while it is still wet, barefoot, and do this for a week. Fungus will be gone. This works on early stages of fungus. Scientific explanation for this is simple: As the water evaporates, a part of it makes ozone, which fights fungus.