How long does it take for flat warts to heal after laser treatment varies according to the number and size range of the lesions, as well as the skin’s ability to repair itself. The skin lesions of flat warts are confined to the superficial layer of the skin, and the volume of the skin lesions is generally small, with carbon dioxide laser and other photoelectric treatment to get rid of flat warts, the skin trauma is superficial, the area is small, and the recovery speed is usually very fast. The skin lesion healing experience scab, off the scab process, generally 3 ~ 5 days scab, 7 ~ 10 days off the scab; healing process if there is infection, scab accidental shedding, etc., the healing time will be extended accordingly. After the flat warts laser, pay attention to strengthen the protection of the skin lesion parts, do not exposure to the sun, keep the local dry and clean, which is conducive to the healing of the wound.