Cracked heels occur for one main reason — the skin on your heels is just too dry to support the immense pressure on them. So when the foot expands, that dry, callused skin on your heels just splits. The best possible treatment for cracked heels is to get some moisture back in those feet.
Try petroleum jelly. It may take a while to soak in, but petroleum jelly is a good way to restore moisture to cracked heels. Try coating your feet in petroleum jelly at night before bed, slip on some comfy socks, and let it soak in overnight while you are asleep.Ease off the soaps. It's important to keep cracked heels clean and dry, but a harsh soap can keep drying out those feet. Use a gentle, mild cleanser that won't strip more moisture out of your feet
.Drink plenty of water. When you don't drink enough water, your mouth and throat feel dry and crackly, and the same goes for your skin. Drink lots of water to help rehydrate your skin as you heal those cracked heels.