Consider cheilitis, which is a mucosal disease with dry lips, chapped lips and desquamation as the main clinical manifestations. There are various types of cheilitis, allergic cheilitis, benign lymphoproliferative cheilitis, granulomatous cheilitis, glandular cheilitis, fungal cheilitis and photosensitive cheilitis. According to the course of disease, there are acute and chronic cheilitis. Treatment should first avoid excessive sunlight, stop using or eating suspicious drugs or foods, avoid dry, hot and windy environment, and get rid of bad habits such as licking lips, which can also prevent recurrence. Correct bad habits, smoke less, drink less, don't use antibiotics at will, don't use inferior or unsuitable lipstick, and don't blindly do "lip tattoo". Avoid all kinds of factors that may cause allergic reactions. Get rid of the habit of biting lips and tongue to avoid mucosal trauma. Eat more fresh fruits and vegetables and foods rich in protein, and eat less sour, hemp, spicy, astringent, scalded and fried foods, not to mention those inferior foods pickled with industrial salt, fried with "waste oil" and fried with lime.

It can be easily treated by taking amoxicillin sulbactam pivoxil, vitamin C, chlorpheniramine and topical fluorine. Usually eat a light and balanced diet, drink plenty of water, eat more vegetables and fruits, and avoid spicy and cold.