Choking to the trachea, if the foreign body accidentally fell into the trachea caused by breathlessness can be urgently through the Heimlich method of self-help and call 120 for help. 1. When choking to the trachea, the trachea will be stimulated by the foreign body will cough violently, the foreign body can be discharged directly, but when the foreign body is larger stuck in the trachea, the situation will be more serious, you can through the Heimlich method of self-help. 2. The main method of Heimlich is to squeeze the abdomen and thorax several times through external force to make the foreign body discharged. Heimlich’s self-help method is as follows: the patient makes a fist and puts it below the thorax and above the navel with the eyes toward him/her, and bends down a little. Leaning on a stable object to do a support, such as handrails, table side, etc., hard to make their fists squeeze their abdominal thorax, through a number of impact, relying on the impact to make the thoracic pressure rise to flush out the foreign body. It should be noted that the Heimlich maneuver is only a simple first aid measure, no matter how the result is recommended to go to the hospital for examination and treatment.