Patient was instructed about the skin damage: the skin may be dry and cracked because of high glucose levels, and cracked skin means it's easier for bacteria to get under the skin and harder for infections to heal. Use a small amount of skin lotion daily, to be sure the feet feel dry - not damp or sticky - afterwards. Try not to get the lotion in between the toes. Keep the toenails trimmed and filed smooth to avoid ingrown toenails. Further teaching is needed.