The main symptoms of pneumothorax are chest pain and dyspnea. The pain starts as sharp pleuritic pain and gradually changes to persistent dull pain. The symptoms of dyspnea can be mild, but in a large number of pneumothorax, especially tension pneumothorax, the symptoms of dyspnea are more serious, and cyanosis, decreased blood pressure and increased heart rate, and even shock can occur. If a pneumothorax occurs and there is only chest pain without shortness of breath and dyspnea, you need to go to the emergency department of the nearest hospital immediately. In case of respiratory distress, call 120 emergency number immediately and ask for help from friends, relatives or pedestrians to get to the nearest hospital as soon as possible. Patients and relatives should remain quiet and not be overly alarmed. Take a semi-sitting and semi-recumbent position, do not move too much, and take oxygen if possible. Before arriving at the hospital or 120 emergency medical personnel, if the symptoms of dyspnea progressively worsen or shock appears, the possibility of massive pneumothorax or tension pneumothorax should be considered, and the family can resuscitate the patient to avoid more serious consequences. The key to resuscitation is to perform chest venting immediately. A syringe can be used to stab directly into the chest cavity from the 2nd or 3rd intercostal space in the midclavicular line to pump air, which can relieve the patient’s breathing difficulty. Gloves or condoms can also be tightly tied to the puncture needle, and a slit is cut in the end of the condom to make a simple exhaust device. In this way, when inhaling, the pleural cavity becomes negative pressure, the slit closes, the condom atrophies, and the air outside the chest cavity is not allowed to enter; while when exhaling, the pleural cavity is positive pressure, the condom expands, and the air inside the chest cavity can be discharged, thus achieving the effect of effective exhaustion and alleviation of symptoms.