Generally speaking, superficial second-degree burns can be healed within 1~2 weeks, while deep second-degree burns with different burn areas and their severity are different, and the healing time is also different. 1. superficial second-degree burns only damage to the epidermis of the skin hair layer and dermal papilla layer, can be accompanied by blisters of different sizes, the degree of burns is relatively light, if there is no combination of infection, generally by virtue of the regenerative capacity of the skin to heal in 1 ~ 2 weeks. 2. Deep second-degree burns damage to the dermal papillary layer of the skin and the following tissues, generally more serious burns, the recovery time according to the size of the burn area varies, the larger the area of the burn the longer the time required for healing. (1) If the burn area is small, it usually heals in 3 to 4 weeks, but some people will form a scar. (2) If the injury is large, the recovery time will be longer. And most patients will have large scars and skin deformation after the wound heals, so the recovery time for burns is relatively long, usually half a year or a year to slowly heal. It should be noted that the specific healing time of second-degree burns will be affected by the infection of the wound surface. Generally speaking, if the wound is clean, free of infection, or lightly infected, the healing time will be relatively fast; if the wound is more seriously infected, the healing time will be relatively long. In addition, patients with good nutritional status will heal faster. It is recommended to seek medical attention after a burn injury to avoid delaying the condition and the timing of treatment.