Most of the phlegm in the child’s throat is caused by excessive inflammatory secretions in the respiratory tract, which is considered to be caused by upper respiratory tract infections, pneumonia, etc., and can be solved by general treatment and medication according to the cause. 1. Upper respiratory tract infections: usually caused by viral and bacterial infections, mainly with “coughing, sputum, runny nose, nasal congestion” and other symptoms of colds, but also some of the “pharyngitis” as the main symptom. If the symptoms of upper respiratory tract infection are mild, no special treatment is needed. Older children with phlegm in their throats can eat light, easy-to-digest foods, such as rice porridge, noodles, etc., and drink plenty of boiled water to rinse the respiratory tract and relieve the symptoms of phlegm. If the phlegm is thick and sticky, you can also seek professional medical help, through nebulized inhalation of saline and other ways to resolve phlegm, relieve cough treatment. 2. Pneumonia: Commonly caused by bronchopneumonia, etc., mostly due to bacterial, viral and other pathogens, can be manifested as coughing, coughing up sputum, fever and other symptoms, and children’s resistance is weak and more susceptible to the disease. Generally under the guidance of the doctor to use drugs, such as amoxicillin, azithromycin and other drugs for anti-infection treatment. Drugs such as Ambroxol can also be used to help expel phlegm. The use of the above medications should be regulated under the guidance of a doctor. The cause of phlegm in the throat is different, the use of drugs are also different, if the symptoms of phlegm in the throat of the child is more serious, it is recommended to go to the hospital to check the cause of the disease, under the guidance of the doctor to use the appropriate medication to treat.