Trauma scars can be removed by medication, physical therapy and surgery. 1. Medication: For mild scars, you can use compound heparin sodium allantoin gel, cumulonimbus cream and other medications to apply localized to lighten the marks, and you can also take vitamin A and vitamin E orally to assist in the treatment. 2. Physical therapy: If the drug treatment is ineffective, you can use physical therapy such as intense pulsed light therapy, fractional laser therapy, dye laser and so on. 3. Surgery: For patients with large trauma scars, surgery can be used, such as skin grafting, keloid contracture release surgery, surgical excision and suture surgery. If you want to treat trauma scars, it is recommended to go to the hospital in time, under the guidance of the doctor to carry out active treatment, do not take medication without authorization to avoid adverse reactions.