After the occurrence of choking, you need to use the Heimlich maneuver to give first aid, and at the same time, you should call the 120 emergency center, the specific operation is divided into the adult method and the child method.
1. Adults: the rescuer embraces the person being rescued from behind, the rescuer puts the metacarpophalangeal joint of the left thumb on top of the middle of the navel and sternum line of the person being rescued, and then the right hand is pressed on the left hand to help the force, and lifts it upward and inward quickly.
2. Children under two years old: adults sit on a chair, put the baby face down on their knees, one hand with the root of the palm of the hand to beat the baby’s back, the other hand to hold the child’s jaw, to the head of the direction of the beat times.
3. Children over two years old: the same method as adults.