There is no quick way to remove phlegm from the throat of children, it may be caused by bronchitis, pneumonia and bronchiectasis, etc. It can be treated with amoxicillin, ceftriaxone, azithromycin and other medicines under the guidance and advice of the doctor. 1. Bronchitis: Bronchitis refers to the inflammation of the bronchial mucosa caused by various factors, and the symptoms of coughing, coughing up phlegm and shortness of breath will appear. You can take amoxicillin under the guidance of the doctor’s advice for treatment. 2. Pneumonia: Pneumonia refers to the inflammation of the terminal airways, alveoli and interstitium of the lungs, and children will have symptoms such as coughing and coughing up sputum. It can be treated with medicines such as ceftriaxone, benzoxiline sodium and ribavirin under doctor’s guidance. 3. Bronchial dilatation: patients will appear for the symptoms of coughing, coughing up sputum, patients can take amoxicillin, azithromycin and other drugs under the guidance of the doctor’s advice to carry out treatment. If the symptoms are serious, if necessary, bronchopulmonary lavage or surgical treatment. When there is a pediatric throat with phlegm, we should go to the hospital in time for consultation, clear causes for treatment, and under the guidance of the doctor’s advice for medication, remember not to take it privately, so as to avoid adverse effects.