Children’s gum ulcers should be looking for relevant triggers and control, at the same time, local systemic medication to promote ulcer healing, strengthen the psychological guidance to ease the tension. 1. Finding triggers and controlling them: children’s gum ulcers may be caused by vitamin deficiencies, other systemic diseases, or stimulation by external hard objects. Corresponding to the need to supplement multivitamins, gastric ulcers, duodenal ulcers, the use of omeprazole and other medication, too hard pacifiers caused by the need to replace the other material softer, the sharp tip of the teeth caused by the need to adjust the grinding of the tip of the teeth to the rounded. 2. medication: ulcers can be used to anti-inflammatory drugs to relieve pain and promote the healing of ulcers, such as lidocaine gel, human epidermal growth factor gel, tretinoin ointment and other drugs. 3. Psychological treatment: the healing and onset of ulcers is closely related to the psychological state, daily recommendations to maintain a good physical state, relieve tension, and actively cooperate with the doctor’s treatment. After removing the triggers, the ulcers generally have the ability to heal themselves, it is recommended to go to the hospital in time for examination, targeted treatment and medication need to follow the doctor’s instructions.