Wound surface healing but inside the pain may be the epidermis healing process to regenerate perception, shallow sensory recovery obstacles, manifested as numbness or pain, can be hot compresses or massage, to promote the recovery of shallow sensation of the wound; also may be due to the epidermis has been healed but the wound is still inside the problem, such as the appearance of the wound epidermis has been healed, but the wound site pain is very strong, the local skin temperature is increased, and can be palpable mass, it is recommended that timely access to hospitals, the epidermis will be incised, and treatment, and to promote the normal healing of the wound.