Dry skin on the feet can be caused by improper footwear, diet or medical conditions. When the skin becomes too dry, painful cracks can form in the skin. You can treat dry, cracked feet with an at-home moisturizing treatment that uses only hydrogenated vegetable oil. The fats in the oil nourish the skin and help erase the damage. It may be necessary to do more than one treatment if your feet are severely dry.

Soak your feet in warm water for five to 10 minutes. Shake off excess water but don't dry your feet.

Rub vegetable oil on your feet. Work the oil between your toes and pay special attention to the heels.

Pull on a pair of clean white cotton socks after applying the oil. Wash your hands with soap and water. Leave the socks on overnight to give the oil time to sink into your skin.

Repeat steps 1 through 3 nightly until your dry skin problem clears up, then switch to weekly maintenance treatments.