Athlete’s Foot (or “Ringworm of the Foot”) is a type of fungal infection that causes an itchy rash. It’s the same type of fungus that causes “Ringworm of the Groin” (or “Jock Itch.”) If left untreated, the foot fungus symptoms can worsen and affect the toenails, soles and sides of feet as well. Sometimes bacteria infects the cracked, blistered skin. Then you’ve got a whole other problem on your hands — err, feet! Knowing how to treat fungal infections early and recognize the symptoms of athlete’s foot will be the key to a speedy recovery.