The four acupuncture points often used in clinical practice are double lung point, large vertebrae point, tiantu point and danzhong point. 1. danzhong point: ideal for patients with bronchial asthma and chronic obstructive pulmonary disease; 2. double lung point: for patients with heavy symptoms of wheezing, sandal point with double lung point is more effective; 3. tiantu point: for patients with chronic or persistent cough; 4. large vertebrae point: for patients with allergic Patients with allergic rhinitis can be treated preventively with double lung yu points when applying the three volts.