I have very deep cracked heels, especially if I ignor them for a couple of weeks. I live in a dry climate. Constant soaking, sanding, moisturizing and socks and shoes to treat. Summer is hard because of sandals, which make my feet dry. I notice that I have hot feet, they are always out from blankets at night. I do not recall ever having cold feet. What could be the cause of my hot feet? When we go on a holiday to a high humidity Caribbean beach, my heels heal perfectly and feel great.