1.Burns: In daily life, flame burns and hot water, hot oil and other hot liquid burns are the most common. Many patients apply sesame oil, soy sauce, butter, toothpaste, etc. directly on the trauma after the injury, but these daily necessities do not have any therapeutic effect on burns. After a burn occurs, tap water should be used for flushing. The earlier the rinse, the better, it can last about 10 to 20 minutes. When encountering a variety of chemical burns, injuries to the eyes, esophagus and other places, at the scene to be promptly flushed with a lot of water, never wait to go to the hospital and then deal with. 2.Poisoning: The cause of poisoning should be identified as soon as possible first, and the vomit or excrement of the poisoned person should be retained if necessary. Drugs eaten in the stomach that have not yet reached the intestines can take the following emetic method: stimulate the back wall of the pharynx or the root of the tongue with fingers or chopsticks to induce vomiting in order to remove the poison from the stomach. If it is alkaloid or heavy metal poisoning, you can drink tea. If it is poisoning by corrosive poison, the stomach mucosa should be protected first, and milk, soy milk or egg white can be drunk. If it is alkaline drug poisoning, you can take it down with vinegar and water in time or neutralize it with acidic substances such as orange juice. 3, drowning After rescuing the drowning person to the shore, the drowning person’s body should be quickly checked, and immediately remove the silt and weed and vomit from the mouth and nose, and then carry out water control treatment. The easiest way is: the rescuer kneeling on one leg, the other leg out of the knee, the drowning person’s abdomen on the rescuer’s knee, so that his head drops, and then press his abdominal back. For the drowning person whose breathing has stopped, artificial respiration should be performed immediately after water control. If breathing and heartbeat have stopped, artificial respiration and chest cardiac compressions should be performed immediately. The first responder will place the palm of the hand in the middle of the sternum for cardiac compressions, and the downward pressure should be slow and fast when relaxing. 4, severe asphyxia: children choking mostly caused by small beans, melon seeds, buttons and other things choked or stuck in the trachea. Things that block the airway should be removed first, such as patting the back, and then do artificial respiration or chest cardiac compressions for first aid. To buy time to do artificial respiration as soon as possible, such as breathing stopped for more than 4 minutes, the brain will suffer damage that is difficult to recover. Mouth-to-nose blowing is effective and easy to do, and if the nose is injured or blocked, the mouth-to-mouth method should be used. If a child under 10 years of age, heartbeat and respiration are stopped, it should be made to lie flat on its back, with the root of the palm of the hand to lightly press its sternum below the sternum, press down the sternum 2.5 cm to 4 cm, let the chest rise, after 15 times of pressure, blow twice. Repeat until breathing and heartbeat are restored. 5, car accidents, falls from height: car accidents, heavy objects or falls from height can easily lead to injury to the spine and spinal cord, children injured for these reasons should be very careful, otherwise, it is likely to cause injury aggravation due to improper rescue. In the suspected spinal injury, rescuers should not immediately pick up the injured person, but should follow the following steps to help: if there is a wound, should be an emergency bandage, can not easily turn the injured person; such as breathing difficulties and unconscious people, to clean oral secretions in a timely manner. Rescuers in the rescue of the injured, suspected of spinal fracture, should be handled according to the spinal fracture injury. Never turn and twist the body of the injured person arbitrarily. One person to hold the type of handling, or two people a head lift, a person to carry the legs of the handling method, are strictly prohibited. 6, penetrating wounds, severed wounds: sharps inserted into the body, may pierce the local blood vessels, nerves and muscles, and then the sharps just embedded in the wound, such as the sharps removed, the wound is immediately exposed and bleeding, serious cases can soon appear hemorrhagic shock, also moved to cause infection. The correct treatment is: first gauze, cotton pads placed on both sides of the sharps, try to make the sharps can not shake, and then available bandage around the limb will cotton pad wrapping fixed, as soon as possible to transport the wounded to the hospital.