Dry skin around the mouth, may be vitamin deficiencies, dry weather, herpes simplex around the mouth, labiitis and other manifestations of the need for supplemental vitamins, moisturizing skincare, antiviral, anti-allergy and other treatments, respectively. 1. Vitamin deficiency: If the lack of vitamin A, vitamin B2 and other vitamins, will lead to the skin around the mouth, lips, mucous membranes dry, chapped, easy to peel. In this case, you can take a multivitamin supplement to replenish vitamin A, vitamin B2 and other vitamins, which will help to maintain the normal function and integrity of the mucous membrane of the skin and help to repair the skin around the mouth. 2. Dry weather: in the fall and winter, or work in a cold, dry environment, water evaporates faster, the skin becomes dry, and the skin around the mouth may also be dry and flaky. It may even crack and bleed. In this case, you can apply skin cream, lip balm, moisturizing skin care, can improve the symptoms. 3. Perioral herpes simplex: there will be blisters at the beginning, then the blisters will merge, break out, vesicle, and crust, and then dryness and flakiness around the mouth may occur. You can apply acyclovir ointment and penciclovir cream locally to treat the condition and moisturize the skin. If the above symptoms are not relieved, or accompanied by other symptoms, you need to consult a doctor in time. 4. Lipitis: Redness, flaking and itching on and around the lips due to allergy or excessive sunlight exposure. Moisturize your skin and avoid sunlight and other stimuli. If symptoms persist or worsen, seek medical attention. If you find dryness and flakiness around your mouth for a long time, consult a doctor in time and follow the doctor’s instructions for examination and treatment, so as to avoid delaying the condition.