Cracked heels which are clinically termed heel fissures never ever look good, is usually a real nuisance but because they might occasionally result in more severe issues if they are not dealt with you should take them seriously. They are more common in anyone who has dry skin, are overweight and use shoes with an open heel. The obvious way to take care of cracked heels is simply giving the feet a bit more attention by starting with a hydrating ointment on them at least two times a day to start with for that dry skin. Once a day after it has improved is going to be enough. Look for moisturizers or balms that have a thicker consistency. Many of them contain skin-softening agents, such as urea and salicylic acid that might help get rid of dead skin cells.
If the cracked heels aren't improved with that regular use of the cream, next see a podiatric physician. They are going to remove the thicker dead skin and then if you apply the cream frequently after that, then that should help maintain it in check. You might also give your feet additional attention before going to bed by soaking your feet for about 10 minutes in plain or soapy water. Just after drying the feet next carefully rub your heels with a foot file or something similar that will help get rid of the dead skin. Apply a heavier, oil-based cream and after that cover with a pair of thin cotton socks or silicone gel heel cup at night to help the moisturizer work. Also try and address the risk factors for the cracked heels. Shedding weight over the long term should help and try and avoid wearing footwear that are open in the heel area.
Above all, don't neglect the dry cracked heels as you may develop deeper fissures in the dermis which usually raise your potential for an infection. If the above self care measures do not help, speak with your podiatrist concerning other treatments you could have.