Children with cough and phlegm should pay attention to the following points. First, drinking more water can clean the mouth, reduce the concentration of oral pathogenic bacteria, and help alleviate cough and phlegm. In addition, pay attention to light diet, try to eat porridge and rotten noodles, eat less and more meals, eat more fruits and vegetables, and cannot eat high protein and high calorie foods, such as beef, mutton, fish, shrimp. Second, pat your back. When you cough, you can pat your back with more sputum, which can shake your chest and promote the discharge of sputum. Third, we can take the traditional Chinese medicine for clearing heat and detoxification. The traditional Chinese medicine can take the Xiaoer Qingfei Lifei oral liquid and Xiaoer Xiaoji Zhike oral liquid, which have the effect of relieving cough and resolving phlegm. It can be selected according to the baby's age. Fourth, it is atomization. If the baby coughs and has too much sputum, it can be atomized. Budesonide and salbutamol can effectively relieve cough.