For patients with sudden respiratory distress, it is often necessary to consider airway spasm, foreign body inhalation or spontaneous pneumothorax and other related diseases, first aid methods are as follows: 1, acute asthma attack: in the case of patients with respiratory distress, the patient can be instructed to sit or lie on his back, untie the collar to keep the airway open, while allowing the patient to maintain a stable state of mind, the patient can be instructed to perform deep inhalation If oxygen is available, oxygen inhalation therapy can be given. Asthma patients often have emergency emergency drugs on standby and can be instructed to nebulize and inhale salbutamol and other drugs to relieve airway spasm; 2. Foreign body inhalation: the Heimlich maneuver can be used to rescue the patient, with the rescuer located behind the patient, holding the patient’s abdomen with both hands, and then squeezing the abdomen rapidly upward and backward, using the lungs to residual gas to expel the foreign body; 3. Spontaneous pneumothorax: In an emergency, it is necessary to transform the tension pneumothorax into a traffic pneumothorax to reduce the compression of the lungs and improve the breathing difficulty. If the patient’s dyspnea still cannot be effectively relieved and improved after the above disposal, he should actively seek medical treatment.