Athlete’s foot (tinea pedis) is a fungal skin infection that affects the skin of the foot and between the toes, causing itching, burning, cracking and peeling. Fungal nail (onychomycosis) is an infection of the nail itself, causing thickening, discolouration and brittleness. The two conditions are related and if athlete’s foot is left untreated, it can spread to the nails, making the infection harder to treat. An experienced podiatrist can accurately diagnose which condition you have and recommend the most appropriate treatment.