The cause of cough and phlegm in children is related to colds, bronchopneumonia, etc. After the onset of the disease, it is necessary to identify the cause of the disease and apply the appropriate medication, and common medications include Lung Lik Cough Compound and Pediatric Lung-Heat Cough and Asthma Granules. 1. Colds: Because children’s bodies are weak against diseases, after being attacked by cold, they will have colds, which will lead to coughing and phlegm symptoms, which need to be treated for colds, and they can take drugs such as anti-inflammatory granules. 2. Bronchopneumonia: the disease can affect the bronchial or lung health, severe shortness of breath, produce phlegm and cough and other performance, so after the onset of the disease can be taken pediatric lung heat cough particles, lung cough and other drugs to reduce the cough and phlegm and other performance of children. Children with coughs and phlegm should be investigated immediately and should be treated with medication under the guidance of a doctor. All of the above medications should be used under the guidance of a doctor, and avoid self-medication.