Listerine can cure jock itch faster than anything John Madden is pushing on your twig and berries. This was reported in the Chicago Tribune and confirmed by their doctors. The one thing that is missing is how the man and his wife figured it out. Can you say "Monica"? But old fashioned Listerine isn't just for cleaning up your mouth and your junk; it can also fight dandruff, nail fungus, athlete's foot and seborrheic dermatitis. I'm not sure I like the sound of that last one; but now I know if I ever get it I can take a Listerine bath and clear it right up.