I once saw a doctor on Opera recommended soaking your feet in tea to cure Athletes Foot.
Soak you feet for a few minutes in tea. Yes ordinary green tea. Draw a batch and put it in a container large enough to fit your feet, and cover them with the tea. A woman and her friends on the show testified that it did work.
ask the Pharmacist at any Chemist shop to give you an antifungal cream for it. There are three or four kinds available without prescription and will work in a short while although you'll need to keep using it after it seems to have cleared to prevent it from coming back. Not worth trying odd remedies like tea and things. Buy a cream and get it sorted quickly... no more itchy feet.