Children cough, cough sputum nebulization most effective, but a small number of patients nebulization is ineffective. Children cough, accompanied by phlegm can be nebulized treatment, can dilute phlegm, promote the discharge of phlegm, can reduce the child cough symptoms. Children cough, cough, such as cough variant asthma, nebulized inhalation terbutaline can dilate the bronchial tubes, improve the patient’s cough symptoms, nebulized inhalation budesonide suspension can reduce bronchial inflammation, can also improve the patient’s cough performance. Children coughing, coughing sputum, may also be allergic cough, chronic eosinophilic bronchitis and other diseases, the above diseases also exist in the airway inflammation, nebulized inhalation budesonide suspension anti-infective treatment therapy also has a certain role. However, there are a small number of patients with ineffective nebulized inhalation therapy. Therefore, when the child coughs and coughs up phlegm, you need to choose the nebulized inhalation treatment under the guidance of the doctor.