The severity of chronic bronchitis depends on the patient’s symptoms and lung function. Some patients can live without it, while others can develop chronic obstructive pulmonary disease (COPD) or even chronic pulmonary heart disease. Chronic bronchitis is characterized by cough, sputum, with or without wheezing. Early symptoms are mild, lung function is normal, and generally do not affect life. When the disease progresses to chronic obstructive pulmonary disease, it may be manifested as shortness of breath after activity, which limits the patient’s life to a certain extent. When the disease progresses to chronic pulmonary heart disease, it can be manifested as dyspnea and other symptoms, and in severe cases, it can lead to heart failure and respiratory failure. Although chronic bronchitis is not completely curable, symptoms and disease progression can be controlled through standardized treatment. First, patients are cautioned to quit smoking. Secondly, enhance physical fitness and prevent infection. If there are symptoms of coughing and sputum, you can use Ambroxol to reduce sputum; if there are symptoms of wheezing, you can use bronchodilators such as aminophylline and salbutamol. In addition, the acute exacerbation of chronic bronchitis need to actively control infection, based on the location of the patient’s common pathogenic bacteria empirical selection of antibiotics such as levofloxacin, azithromycin and amoxicillin, etc. If necessary, according to the drug sensitivity test selection. If necessary, antibiotics can be selected according to the drug sensitivity test. It is recommended that patients with chronic bronchitis go to the hospital in time to receive standardized treatment under the guidance of professional doctors.