Lips are always dry and peeling, can be caused by local dryness, contact lipitis, lack of vitamins, etc., can be clear causes to strengthen the moisturizing of the lips, give topical topical drug treatment, vitamin supplementation and so on. 1. Local dryness: dry air, drinking too little water, frequent licking of the lips can lead to dry, flaky lip skin. Lip balm can be applied every night before going to bed to moisturize the lips. Daily attention to drink more water, eat more vegetables, change the bad habit of licking lips. 2. Contact Lipitis: contact allergy, or due to eat allergenic food, such as mango, pineapple, etc., after eating an allergic reaction of the lips, resulting in red, swollen, dry lips, skin, itching, etc., in this case, we should immediately stop contact allergenic substances, stop eating the relevant food, can be used externally to alleviate the symptoms of anti-inflammatory and anti-anaphylactic ointment, such as hydrocortisone butyrate cream. 3. Lack of vitamins: the body lacks a certain vitamin, especially the lack of vitamin B and vitamin C, can affect the health of the skin and mucous membranes, easy to appear lips local dry peeling phenomenon. This situation can take multivitamins for treatment. Daily attention to diet and nutritional balance, increase the intake of fresh vegetables, fruits and whole grains. The lips are always dry and peeling, it is recommended to consult a doctor in a timely manner, to clarify the cause of targeted treatment, the use of drugs need to follow the doctor’s instructions.