You can apply lip balm to dry and cracked lips, and lipstick can also be applied. There are many kinds of medications, including vitamin E ointment, vitamin B2 and B6 ointment, etc. Erythromycin ointment can be applied to molted skin. Generally, for the condition of dry lips, it is required to find out the cause of the disease and then start from the cause before addressing the symptoms of dry lips. The general causes are dry climate, decreased immunity, consumptive primary diseases, lack of nutrients and other etiologies. Patients with dry environment require active hydration, patients with decreased immunity require physical enhancement, and patients with primary disease require active treatment of primary disease. Patients with nutritional deficiencies supplement nutrients, including vitamin-like substances, which can be taken orally as a multivitamin, or through diet.