Chronic bronchitis is clinically recurrent, and its recovery time is closely related to the severity of inflammation and the patient’s own constitution, which varies from person to person. Chronic bronchitis is a chronic non-specific inflammation of the trachea, bronchial mucosa and surrounding tissues. Patients with chronic bronchitis can gradually recover in about 1 month if they are in good health, actively control the infection, and effectively protect the ventilation function of the lungs. If the patient’s inflammatory lesions in the lungs are more severe and his or her own constitution is lower, recovery is slower. Some patients have poor efficacy due to insensitive antibiotics and need to change antibiotics midway through treatment, which usually takes about 3 months for symptoms such as cough and sputum to gradually resolve, but can flare up again the following year due to weather and external sensations. Patients with chronic bronchitis need to strengthen physical exercise, moderate exercise, avoid contact with people with colds and flu, and avoid getting cold, rain and overexertion.