Skin trauma is easy to leave scars after healing. It is not recommended to use general silk threads for the face, and if cosmetic stitches are used, the degree of scarring can be relatively reduced, and attention should also be paid to the care after suturing. At present, CO2 fractional laser treatment, external growth factor solution and regular Q laser treatment can be used. It can significantly reduce scarring. It is important to go to the hospital in time to clean, disinfect, suture or dress the wound and other formal disposition. Be sure to wait for the wound to fall off on its own after scabbing. While facial scabs are certainly unattractive, premature forced removal of the scab will prevent the epidermal cells that have not yet been repaired from growing well, making it easy to form scars and hyperpigmentation. It is especially important to pay attention to nighttime care to avoid getting the scabs off unconsciously. If you are still young, the scars will become smaller or lighter through growth, and will not be easily visible when you grow up. During the recovery period, it is not advisable to eat drugs containing lead and gong to avoid causing pigmentation, and it is not advisable to use cosmetics containing heavy metals such as lead, gong, silver and photosensitive substances, which will stimulate the increase of skin pigmentation. To do a good job of sun protection, the sun is hot and abundant in high summer, which can lead to ultraviolet radiation in the sunlight, in other seasons should also do a good job of sun protection. Cosmetics, soap, etc. should also not touch the wound. In the diet avoid eating wine, chili, raw garlic, ginger, mustard, coffee and other irritating foods, will promote the growth of scars, through scientific and careful treatment of the wound, can try to can control the degree of scar limit.