Mouth pain and fire can be taken to improve the symptoms of diet, vitamin supplementation, medication and other methods. 1. Adjust the diet: If the patient’s condition is not particularly serious, you can eat a light diet, drink more water, eat more vegetables and fruits and eat less spicy and stimulating food to ease the discomfort. 2. Supplementary vitamins: you can take some vitamin C, vitamin B2 and other vitamin drugs can reduce the symptoms of fire, avoid stimulation of the affected area, keep a happy mood. 3. medication: apply erythromycin ointment and other anti-inflammatory and pain relieving medications on the lips to relieve mouth pain and promote wound healing. The medication should follow the doctor’s instructions. Remind patients, if the symptoms have not been relieved, should be timely consultation, clear cause, under the guidance of the doctor for treatment.