Where do i go to find most common cause of athletes foot on top of foot?

Causes of athlete's : Fungus thrives in a moist, warm and dark environment. Using anti-perspirants on your feet is very helpful in preventing infection.

It is more common on: The bottom of the foot. However, the same conditions that cause it on the bottom cause it on the top. Dark , wet, moist regions which are perfect breeding grounds for the fungi.