Spots on the mouth like a beard can be adjusted from the living habits, and if necessary, given drugs or through laser treatment. 1. Adjust living habits: it is suggested to pay strict attention to sun protection when going out, which can reduce pigmentation. Pay attention to the diet, give a variety of fresh fruits and vegetables, can supplement a variety of nutrients. 2. Medication: You can go to the dermatology department of the hospital for examination, and give suitable topical medication under the guidance of the doctor, commonly used hydroquinone cream, polysulfonic acid mucopolysaccharide cream, which has the effect of antioxidant and whitening. 3. Laser treatment: If necessary, the local area will be irradiated by laser, and the pigment and pigment cells in the plaque will be heated, ruptured, coagulated and atrophied, and will be metabolized with the body’s metabolism, which can achieve the ideal therapeutic effect. Spots on the mouth like a beard, it is recommended to timely visit the hospital, under the guidance of the doctor standardized treatment.