I make a all purpose healing salve with olive oil, rosehip oil, calendula oil, St. John's Wort Oil, Emu Oil, and essential oils of Lavender, Peppermint, Eucalyptus, Tea Tree, and Bulgarian Rose. Works wonders. It helps the cracks... works wonders on the pain. I've had that happen to me recently... just on one foot!!! I had heard Emu Oil was the best oil for cracked, sore heels. I find it's very moisturizing... I've tried the salve with and without the Emu oil. I rather it WITH the Emu Oil. I feel the difference.