Bronchitis is a chronic non-specific inflammation of the trachea, bronchial mucosa and surrounding tissues, with cough and sputum as typical symptoms. The main treatment is cough and phlegm, if there is acute infection, anti-infection treatment can be done, and if necessary, nebulization treatment can be done.1. Cough and phlegm treatment: For patients with obvious cough and phlegm, it is recommended to use cough and phlegm medication, commonly used cough medications include Suhuang Cough Capsules, compound methoxynamin capsules, honey-refined Chuanbei Loquat Paste, etc., and phlegm medications include eucalyptus lemongrass enteric soft capsule, tranylcypromine oral solution, acetylcysteine granules, etc. Acetylcysteine granules, etc. If there is airway spasm accompanied by shortness of breath, it can be treated with aminophylline or leukotriene receptor antagonist montelukast sodium; 2, anti-infection treatment: if coughing yellow pus sputum, bacterial infection is considered, sputum smear, sputum culture and other tests can be done, according to the severity of bronchitis, drug sensitivity test results to select sensitive antibiotics to control infection, commonly used antibiotics are penicillin G, erythromycin, cephalosporin, quinolones, etc. The most common antibiotics are penicillin G, erythromycin, cephalosporin, quinolones, etc. In severe cases, you can choose to inject or drip antibiotics; 3, nebulization therapy: nebulization therapy is to add the drug solution into the nebulizer nebulized into particles, absorbed by the respiratory mucosa, can dilute the secretions in the airway, to play the role of sterilization and anti-inflammatory, cough and phlegm.