The skin becomes scaly. There are sores or blisters between toes. Often it spreads to the soles.
This infection is caused by a fungus. This breeds in warm wet places. This is a minor irritation and often disappears by itself. But sometimes these cracks and sores become the site for other infections.
Proper foot care can alleviate the condition. Rub off peelings gently. Wash feet well and apply powder. A mild fungicidal ointment at bedtime will help. Keep feet exposed. If you have to wear shoes, wear cotton socks.
Sometimes the blisters begin to ooze. Then soak feet in a potassium permanganate solution of recommended strength. Soak your feet in a warm bath for 10 minutes and then apply calamine lotion.
If the problem persists consult a doctor.