Blisters appear after burns because capillaries dilate rapidly, capillary permeability increases, and a large amount of plasma-like material exudes from the vessels, which in turn causes blisters. The blisters can protect the wound from infection, and after a period of time will be slowly absorbed and promote the growth of new skin, if the blisters are broken, it is easy to cause infection at the burns, so it is recommended to seek medical attention and treatment by a professional physician: 1. If the blisters are accidentally broken after burns but the blister skin is intact, use sterile gauze to slowly press, so that the liquid in the blisters is fully out, but be careful not to wipe, so as not to wipe off the blister skin cause infection and leave scars. The blister skin has a protective effect on the wound, which can prevent the dermal tissue from being directly exposed to the air resulting in excessive loss of fluid by the organism, and can also avoid infection and aggravation of the wound and promote wound healing; 2. It is necessary to disinfect the wound and apply scalding cream to the skin surface, then apply pressure bandage, i.e., press the wound with a bandage to avoid causing infection; 3. If the blister is broken and the blister skin is damaged, it is recommended that a If the blister is broken and the blister skin is damaged, it is recommended that the doctor carry out debridement treatment and then apply pressure bandage, and at the same time, local anti-inflammatory drugs or oral antibiotics can be used to prevent secondary infection; 4. The common clinical anti-infective drugs are silver sulfadiazine and erythromycin, which can inhibit the growth and reproduction of pathogenic bacteria, thus playing an anti-infective role. It is important to note that do not superstitiously believe in native methods, i.e. using soy sauce, toothpaste, dashi, etc. for pain relief after scalding. Such treatment will not only increase the chance of trauma infection, but also affect the doctor’s observation and judgment of the depth of the scald and delay treatment.