lol apparently weeing doesn't work...LOL

snacks DH used to have this really bad.
there are a couple of things you can do.... firstly slather on the hydrozole or canasten as often as you can.
wear cotton socks with your shoes or just slip ons if you can to let your feet dry out and finally just keep a bottle of shower cleaner in the shower and spray the base when you've finished showering.
he hasn't had it for over a year now and he used to grow potatoes between his toes

I hope this helps....