After the bronchitis is cured, there is still sputum may be the disease is not completely controlled, may also be secondary bacterial infection, etc., can be improved by increasing water intake, taking medication and nebulized inhalation. 1. Increase water intake: patients can drink more warm water or honey water every day, eat more fresh fruits and vegetables to increase water intake, dilute phlegm, and enhance the body’s resistance, which is conducive to the rapid recovery of the disease. 2. Taking medicines: patients can also take some cough and phlegm medicines under the guidance of the doctor, such as snake gall and Sichuan shellfish liquid, fresh bamboo lee oral solution, compound loquat leaf cream and so on. When there are clear indications of bacterial infection, amoxicillin, levofloxacin, cefuroxime and other drugs can be added to actively anti-infective treatment. 3. Nebulized inhalation: If the sputum is sticky and serious, and the patient has difficulty coughing up sputum, the patient can be treated by nebulized inhalation, such as budesonide suspension, acetylcysteine and so on. After the bronchitis is well, there is still phlegm passes need to actively consult the doctor, clarify the cause of the disease, and actively cooperate with the doctor’s treatment, to prevent further aggravation of the disease. The above drugs need to be used under the guidance of a physician.