Children with phlegm in the throat, generally consider pharyngitis, gastroesophageal reflux, respiratory tract infections and other causes, expectoration is mainly through dietary control, back patting phlegm, medication and other methods of control. 1. Dietary control: pharyngitis, gastroesophageal reflux caused by phlegm in the throat, mainly through dietary control to improve the condition, such as burping after eating, appropriate elevation of the upper body and so on. 2. Back patting and sputum patting: if the child coughs up sputum in the wrong way or coughs up sputum in a weak way, the parents can put four fingers together, the palm of the hand in a hollow shape, the back pad towel, patting the back from the bottom upwards, from the inside out, and promote the discharge of sputum through the method of mechanical vibration. 3. medication: children with phlegm in the throat is related to respiratory infections, especially yellow sputum, or blood routine suggests that the white blood cells, ultrasensitive C-reactive protein is elevated, you can follow the doctor’s instructions to be amoxicillin, cefixime, azithromycin and other anti-infective drugs, combined with aminobromine oral solution of phlegm, or nebulization of acetylcysteine dilution of phlegm to promote coughing out. Children with phlegm in their throats are advised to seek medical attention, improve chest X-ray and chest CT examination if necessary, and treat the cause under the guidance of specialists.