In clinical work, we have come across many patients who do not understand the common sense of first aid for burns, resulting in deepening of burn wounds and even infection, leading to irreparable regrets (such as superficial burns but leaving scarring), which is a great pity. Therefore, it is necessary to talk to you about how to take first aid correctly after a burn injury. We know that there are three main factors that affect the local severity of burns: 1. the temperature of the heat source; 2. the duration of the heat; 3. whether the combined infection. Just like when we fry an egg, the larger the fire, the longer the time, the more likely the egg will become scorched; while the smaller the fire, the shorter the time, the more tender the egg. The human skin is also made of protein like eggs, and the degree of damage depends mainly on the temperature and time. Once the trauma is infected, the remaining skin tissue will be destroyed, and the trauma will remain in the inflammation period, delaying the repair period, deepening the trauma and prolonging the healing time. First aid should pay attention to: 1, do not use your hands to fight, so as not to cause serious burns on the hands and affect the function, can quickly lie down, slowly rolling on the ground, press out the flame; 2, can not stand or run to call when the clothes on fire, to prevent increased or aggravated head and face burns or inhalation injury; 3, to help put out the fire, available non-flammable materials, quickly cover the fire, so that it is isolated from the air; 4, in poorly ventilated space fire, cover the mouth and nose with a wet towel, low body quickly evacuate to the outside of the building. Because the harmful particles in the flame smoke are generally floating in the air above. Other places to note: 1, the first time after the injury is not to go to the hospital, but should immediately take the above-mentioned five-step emergency treatment! It is possible to cause the formation of scarring deep second-degree burns into shallow second-degree burns without scarring. The opposite will miss the best time for treatment, leaving lifelong regrets; 2, do not believe in the so-called prescriptions, indiscriminately apply some large sauce, toothpaste and self-administered drugs not approved for use by the state, may cause trauma infection, so that shallow second-degree burns become deep second-degree or even third-degree burns due to infection, resulting in prolonged healing and even the formation of scarring; 3, small area of light burns, the patient has little loss of body fluids, no special requirements for drinking water . Large burns due to serious loss of body fluids, stimulating the thirst center, the patient is abnormally thirsty, often resulting in excessive drinking, water intoxication and acute gastric dilatation may occur. The site does not have the conditions of infusion, generally can be oral rehydration, but should not be oral water, should be appropriate to salt drinks, pay attention to the amount of restrictions; 4, some special burns can not be flushed with water, such as: quicklime burns, gunpowder burns, etc.