I have had over 6 yrs of recurring athletes foot. Some preps helped but others were totally US. When I did get relief it was short lived (due to recurrance) until I looked deeper and found Neem which is a tree in india. It seems there is not a skin fungus that can survive the oil from this tree. I found a company selling Neem in UK and asked their advice. I was told that neem treatment (oil) in the bath would kill the fungus but I must also make a tea from the leaf to swill shoes as the spores lodge in the shoes an cause re ocurrance. Touch wood It cleared in 5 days and I am freeee. Info on this is at http://www.neemgenie.co.uk/condition.html#anchor792424
and I am informed it works just as well on ringworm and scabies mite.