Bronchitis do nebulization generally do about 1 week to get well, but the specific time also depends on the patient’s clinical symptoms, the severity of the disease and treatment, can not be generalized. The nebulized inhalation is widely used in the treatment of bronchitis and can play a local anti-inflammatory and desensitizing role, which helps to reduce airway hyperresponsiveness, thus relieving clinical symptoms such as coughing, coughing and shortness of breath. If the cough is caused by common bronchitis, the patient’s cough symptoms can be significantly improved by nebulization for about 1 week, and there is no need to continue the nebulization treatment after the symptoms improve. If the patient is allergic and the cough is caused by an allergic cause, there may be airway hyperreactivity and chronic inflammation of the airways, and the treatment should be standardized according to the protocol for wheezing or asthma, and the treatment plan should be evaluated every 1-3 months, adhering to the principles of regular, long-term, continuous and individualized treatment, with the specific recovery time varying from person to person. In addition, patients with bronchiectasis need to pay attention to timely cleaning of the nebulizer tube as well as gargling after nebulizer inhalation to prevent fungal secondary infection.