For scars on the head, i.e. keloid scars, once they appear, they cannot be completely removed, but the appearance of keloid scars can be improved through medication, physical therapy and surgery. 1. Medication: Local injection of glucocorticoids can inhibit the excess collagen locally, thus softening and reducing the size of the scar. In addition, you can also apply medication to inhibit scar proliferation, such as cumulonimbus ointment. 2. Physical therapy: through the carbon dioxide fractional laser, erbium laser and other photoelectric treatments, through the photothermal effect of the laser to start the skin damage repair process, so that the local collagen tissue regeneration and rearrangement; dye laser can also be occluded in the local keloidal capillaries to soften the keloidal scars, and inhibit its continued proliferation. 3. Surgery: If the above treatments are not effective and the scar still seriously affects the appearance or function, surgery can be considered. For scars on the head, it is recommended that patients should take into account their own situation, go to a regular medical institution, and cooperate with specialists to give corresponding treatment.