Open water burns a few days can not be generalized, different burn depth, burn area, healing time will be different, such as one degree burns 3 ~ 7 days, second degree burns 2 ~ 4 weeks or more, third degree burns 4 ~ 12 weeks or more. After boiling water burns due to different depth of scald, scald area, wound care, personal physical condition of different, healing time is not the same, can not be generalized. Such as boiling water burns for a degree of scalding, scalding is relatively light, no blisters on the surface, the healing time is generally about 3 to 7 days, the wound healing does not leave scars, does not leave pigmentation. If the boiling water burns for the second degree burns, second degree burns are divided into shallow second degree and deep second degree, shallow second degree burns may be in about 2 weeks to recover, deep second degree burns healing time is longer, may be in 2~4 weeks or even longer. If the boiling water scald is a third-degree scald, the whole layer of the skin is burned, and even involves the subcutaneous fat and muscle layer, the condition is more serious, the recovery time is longer, and it may take 4~12 weeks or even longer to get well. If the scald occurs in the elderly, scalded without good care of the wound has inflammation and infection, scalded without paying attention to dietary regulation, these will also prolong the wound healing time. It is recommended to consult a doctor and standardize the treatment of burns.