Fast, effective and affordable, Tnactin Athlete Liquid Foot Spray offers a solution to itchy skin on your feet and between your toes caused by ringworm (athlete's foot) and itchy skin. skin on your body caused by tinea corporis (ringworm). If you suffer from recurrent athlete's foot or ringworm, Tnactin is for you. It applies easily, penetrates the hard-to-reach skin between your toes, and leaves no powdery residue to rub off your clothes.