To effectively prevent scarring after facial skin trauma, the following points must be noted: 1. Seek immediate medical attention and clean the wound: After facial trauma, the wounded surface should be washed with disinfectant solution and clean saline in a timely manner. In case of burns, the area must be immediately rinsed with plenty of clean cold water for more than half an hour; 2. Prevent infection: Preventing infection is the key to avoid scarring of wounds, because infection can cause damage deep into the subdermis, so that the epidermis cannot be regenerated and granulation tissue proliferation to fill the defect will form scars. After facial debridement and suturing, in order to prevent infection, you can apply gentamicin ointment on the washed wound twice a day until the wound is crusted over; 3. The natural decabbing of the skin will be itchy after the scabbing, so you should not be anxious or use your hands to tear off the scab. 5, protection of skin rejuvenation to the scab off the red tender skin, can not use any cosmetics to cover, available vitamin A, D pill liquid or vitamin E pill liquid to protect the skin, make it soft and moist. You can use non-irritating cosmetics only after half a month. 3 months should avoid exposure to the sun; 6, medication if the facial pigmentation after trauma, you can take vitamin C, 100 mg each time; vitamin E, 100 mg each time. 3 times a day for 1 to 2 months, can reduce hyperpigmentation and promote recovery. After the trauma is healed, if used together with scar paste, the application for about 3 months can further promote the scar flattening and the color close to normal skin to achieve the best effect.