What Causes Athlete S Foot Despite Using Canesten Cream?

Hi,I m suffering from athletes foot. It is very dry, itchy and sore and is between my toes but mainly on top of my toes. It has also spread to inbetween my fingers more recently. I m guessing it has occurred from wearing work boots for long shifts and not drying my feet properly after showers. I ve had the condition since September, however I went in holiday in the middle of September and the condition cleared up, but returned again on the second day back. Since then I ve been using Caneston cream and the condition has been going through patches where it looks to be healing but then back to stage one. I am still using this cream but the condition doesn t seem to be getting any better. The skin is also cracking around my fingers now and it is actually quite uncomfortable to type this. Please help me out. Thanks, Kane.