Children with bronchial asthma, bronchopneumonia and other causes can cause coughing, coughing up sputum, wheezing and other symptoms, which need to be treated according to the cause, such as nebulized inhalation of salbutamol, acetylcysteine, the use of antibiotics to fight infections and so on. 1. Bronchial asthma: Children with bronchial asthma may experience coughing, wheezing and coughing up phlegm after inhaling allergens such as pollen and dust mites. The symptoms can be controlled by β2 agonists such as salbutamol nebulizer, inhaled glucocorticosteroids such as budesonide, leukotriene modifiers such as montelukast and other drugs as prescribed by the doctor, and allergens need to be avoided to avoid triggering asthma symptoms again. 2. Bronchopneumonia: Children with bronchopneumonia may cough, cough up sputum, wheeze and other symptoms. If the sputum is not easy to cough up, you can use acetylcysteine for sputum treatment, nebulized inhalation of salbutamol can alleviate the symptoms of wheezing, you need to use sensitive antibiotics for anti-infective treatment of different pathogens causing pneumonia, such as Streptococcus pneumoniae infections taking penicillin. Children with cough, sputum, wheezing symptoms, parents are advised to take their children to the hospital in a timely manner, after a clear diagnosis for targeted treatment, to avoid delayed treatment. All of the above drugs should be used under the guidance of a doctor.