Cracked skin around the heels which are technically known as 'heel fissures' never look good, can be a real nuisance but as they may sometimes lead to more serious problems if they are not treated you need to take them seriously. These are more prevalent in anyone who has dry skin, are overweight and use footwear that have an open heel. The simplest way to treat them is simply giving the feet a bit more attention by beginning with a hydrating cream on them at least twice a day to begin with for your dry skin. Once a day after it has improved will probably be enough. Seek out skin lotions or ointments that have a thicker consistency. Many of them consist of skin-softening agents, for example urea and salicylic acid that may help remove dead skin cells.
In the event the cracked heels are not helped by that regular use of the cream, next see a podiatrist. They are going to take away the thicker dead skin after which if you apply the lotion habitually after that, then that should help maintain it in check. You might give your feet some additional attention before going to bed by soaking your feet for around 10 minutes in plain or soapy water. Right after drying the feet then lightly rub your heels with a foot filer or something similar to help you take away the dry skin. Apply a heavier, oil-based ointment and after that cover with a pair of thin cotton socks or silicone gel heel cup at night to help the moisturizer work. In addition try and deal with the risk factors for the cracked heels. Losing weight in the long run may help and try and steer clear of wearing footwear which are open in the heel area.
Above all, do not neglect the dry cracked heels because you can develop deeper cracks in the dermis which will increase your likelihood of infection. In the event the above self care measures don't help, discuss with your foot doctor about other treatment options that you could have.