The face has a higher chance of suffering burns because of its exposed area. In particular, burns caused by flame and explosion. The first characteristic of post-injury is swelling: because of the loose facial tissue, dense blood vessels and rich blood circulation, edema is obvious after burns. Generally 6~8 hours after injury, the face is swollen and deformed, the eyes cannot be opened, and in severe cases, the eyelids are turned out, and the mouth is difficult to open or the mouth is fish-mouth shaped. In 36~48 hours after the injury, the intertissue fluid is absorbed back and the swelling gradually subsides. In the case of deep burns, the swelling is not obvious due to scab compression, and its edema ooze turns deeper, resulting in edema in the soft tissues of the neck and pharynx, which leads to or aggravates respiratory obstruction. The second characteristic of facial burns is the presence of burns of the five senses: the face is the site of concentration of the five senses, and burns are often accompanied by burns of the eyes, nose, ears, mouth and other organs, and secretions from the five senses often make the facial trauma moist and soft and infected, and in turn facial trauma infection can also complicate or aggravate the infection of the five senses, especially the eyes and ears. Fast wound healing is the third characteristic of facial burns: because the facial skin has good blood circulation and more sweat glands, sebaceous glands and hair follicles (especially in the beard area), the facial burns have a strong healing ability. Sometimes the depth is not easily distinguishable in the early stages, and what appears to be a deep burn on the outside may heal without surgery as long as it is treated appropriately.