How do you get rid of foot fungus?!

How do you get rid of foot fungus?

My brother's got it real bad, and he doesn't seem to want to do anything about it. Is there some medical treatment for it besides fungal cream?

I roommate wtih a guy whos feet smelt like a cross between a skunk and rotten fish, I dreaded 5pm when he would take off his work boots. He tried a few over the counter sprays, etc. to no prevail. One weekend I decided something needed to be done, because the odor would fill the whole house! I took a plastic tub filled it with hot water and dumped 1/8 of gallon of Landry detergent bleach in it. Then I made him sit and watch TV with his feet in the tub for about an .5 hour. Its been 3 years since that day and he he is truly grateful because the smelly feet syndrome went away!! God, that smell is burned into my memory, it made the whole house smell!!