How can a runner tell athlete’s foot from contact dermatitis?

This episode comes from Amanda who wanted to know how to tell the difference between contact dermatitis and athlete's foot.  It's summertime, she's been running, her feet sweat a lot, and she noticed a bunch of peeling skin on her feet.  She assumed it might be athlete's foot, but one of her friends said it might be dermatitis. This is a great question!  How can a runner tell athlete's foot from contact dermatitis?  Well, that's what we're talking about today on the Doc on the Run podcast.