Try a warm water soak with some softening agents, I prefer jojoba oil mix with vit e/ aloe baby oil. Once youve soaked them a while, then pumice them while still at foot bath. Of course, rinse feet then in clean, cool water. Apply vaseline (at night) and I like and use Zims Crack Creme (I use this both in day and night), it comes in a liquid spray, and put on a pair of ankle socks for the day or evening. Works great, and doing this routinely will surely help your feet as it does mine