The mask mark on the face is caused by the melanin precipitation in the skin not covered by the mask part due to the exposure to ultraviolet rays, and it can be recovered by laser, topical medication and good sun protection in the treatment. 1. Laser treatment: In the clinic, photorejuvenation, ultra-picosecond or honeycomb picosecond can effectively lighten the melanin, thus improving the mask marks. 2. Topical medication: mask marks on the face can be lightened by applying hydroquinone cream externally, or by using skin care products containing arbutin, vitamin C and so on. 3. Good sun protection: patients should also do a good job of sun protection while wearing a mask on a daily basis. For example, apply sunscreen, use umbrellas and so on. When the face is sunburned mask prints, if the patient is self-conscious of the impact on aesthetics, it is recommended to go to a regular hospital in a timely manner, under the guidance of a professional doctor for standardized treatment.