Dry skin (xerosis) can often occur, and subsequently worsen, by wearing open-back shoes. Increased body weight or increased friction from the back of the shoe can also lead to dry and cracked heels. Dry and cracked skin can be a sign of more significant problems, such as diabetes or autonomic neuropathy. Moisturizing with a cream can help reduce cracking. If an open sore develops, doctor attention should be sought.
“When deep cracks in the heels develop, they can be painful. They may even bleed. People should see a doctor if they experience soreness, redness, swelling, or severe pain in any area of the foot for more than a few days.”