The treatment of lip ulcers should first be based on the cause, which is mostly due to local trauma, mental stress, diet, certain drugs, poor nutrition, low protein, abnormal hormone levels and necessary vitamin or trace element deficiency. Among them, local trauma, diet and vitamin and trace element deficiencies are more common. Because the lips are mucous membrane tissues with dense surrounding nerves, the pain is more pronounced after ulceration and the period is longer. If the wound ulcer is inflamed due to trauma, treatment should be taken in a timely manner, and oral medication can be taken for minor ones, while surgery is recommended for more serious ones; if the ulcerative changes in the lips are caused by a hard and dry diet, general topical watermelon cream spray can be used to solve the problem, and attention should be paid to a light diet to avoid recurrence; if the ulcer appears due to a lack of vitamins and trace elements, such ulcers are often called fires. In addition to topical medication, you should also eat more fresh fruits and vegetables and take vitamin and trace element supplements if necessary. Lip ulcers are generally self-limiting diseases, most of which can be cured, but if they recur, you should consult a stomatologist in a timely manner, and the treatment should be combined with the adjustment of diet and work and rest to get twice the result with half the effort.