Moustache is the sweaty hair around the lips, which generally does not need special treatment and can be removed by laser hair removal for those who have cosmetic needs. Laser hair removal utilizes the photothermal effect of the laser to penetrate through the surface layer of the skin and burn the hair follicles, thus destroying the structure of the hair follicles and thus losing the ability to regenerate, thus achieving the effect of permanent hair removal, which is usually applicable to people with excessive hair and those who are in pursuit of aesthetics. People who are pregnant, breastfeeding, infected in the treatment area, diabetic, etc. cannot take this treatment. Laser hair removal may appear after the pain, local edema, local pigmentation, hypopigmentation and other adverse reactions, after the treatment to use ice packs to ice the treatment area, and follow the doctor’s instructions in accordance with the course of treatment.