Phlegm in children’s throat is mostly caused by the accumulation of inflammatory secretions in the respiratory tract after increasing. It can usually be caused by cold or pneumonia, etc. Parents need to take their children to the hospital for blood tests, chest CT or chest radiographs, etc., in order to make a clear diagnosis and then treat the symptoms according to the doctor’s instructions. Common causes and treatment 1, cold: usually caused by respiratory tract infection, cold, etc., can be actively treated under the guidance of a professional doctor, using cough and phlegm medicines, and with anti-inflammatory, and other drugs. Older children with phlegm in their throat can eat more light and easily digestible food, such as rice porridge, noodles, etc. They can also drink more plain water, mung bean soup, Sydney water, etc., to relieve the symptoms of phlegm. If the phlegm is thick and sticky, you can also seek the help of a professional doctor and treat the cough by nebulizing inhalation. 2. Pneumonia: common in bronchopneumonia, bacterial pneumonia, etc., mostly due to viruses, bacteria and other pathogens, can be manifested as coughing, coughing, fever and other symptoms, and children are more prone to disease because the respiratory system is not well developed. Generally, medications such as amoxicillin and azithromycin are used for anti-infection treatment under the guidance of a doctor. Drugs such as amoxicillin and azithromycin can also be used to help expel phlegm. Precautions In daily life, it is necessary to pay attention to children’s body temperature in a timely manner. The appropriate room temperature and moderation should be controlled, and attention should be paid to keeping warm when going out to avoid getting cold in order to relieve children’s cough as well as symptoms such as having phlegm.