Cracked heels which are technically labeled heel fissures never look good, can be a real hassle but because they may in some cases result in more severe concerns if they are not dealt with you should take them seriously. They are more common in those who have dry skin, are overweight and wear shoes that have an open heel. The ideal way to address them is merely giving your feet additional attention by beginning with a hydrating cream on them at least two times a day to start with for that dry skin. Once a day after it has improved will likely be adequate. Try to find moisturizers or balms that have a thicker consistency. Many of them include skin-softening agents, which include urea and salicylic acid which will help clear away old skin debris.
In the event the cracked heels aren't fixed by that frequent use of the cream, then visit a podiatrist. They should remove the thicker dead skin after which if you apply the ointment repeatedly after that, then that should help ensure that it stays under control. You could also give your feet some additional attention before you go to bed by soaking the feet for about 10 minutes in plain or soapy water. After drying the feet after that gently rub your heels with a foot filer or something like that to help you take away the dead skin. Use a heavier, oil-based lotion and then cover with a pair of thin cotton socks or silicone gel heel cup at night to help the moisturizing lotion work. In addition try and deal with the risk factors for the cracked heels. Reducing weight over the long term should help and try and get away from using footwear which are open in the heel area.
Above all, you should not neglect the dry cracked heels because you can develop deeper fissures in the skin which usually increase your risk of infection. In the event the above self care measures tend not to help, discuss with your podiatrist regarding other treatment methods you could have.