The skin around the nails hardens and cracks should do the following: first, need to adjust the dietary structure, because after a large amount of alcohol will lead to vitamin absorption difficulties, so you need to ban alcohol, and you need to appropriate more intake of vitamin-rich and fiber-rich foods, such as fruits and green vegetables, etc., moderate intake of B vitamins and vitamin C-rich fruits, such as kiwi fruit, apples, duck pear, etc., but also need to appropriate intake of high quality protein The first step is to take a look at the body’s nutritional content, such as fish, shrimp, etc. to supplement the body’s lack of nutrients. Second, hands try not to dip in the water or washing clothes, because too much water will lead to local oil is removed, while the laundry detergent will remove the skin surface oil, will lead to skin hardening and cracking. Third, in the process of trimming the nails, to remove the cracked skin, so that the local can grow new skin as soon as possible, but also can be applied to the local oil-based substances, such as petroleum jelly ointment, etc. to make it softer.