If a child has a cough and yellow phlegm, parents can deal with it in the following ways: 1. Give the child more warm boiled water. The child’s yellow phlegm is often a hot cough, and hydration can promote the dilution of phlegm and facilitate its discharge. 2. Take Chinese medicines that clear heat and resolve phlegm, including Jin Zhen Oral Liquid and Compound Fresh Bamboo Liquid, which are both effective in clearing heat and resolving phlegm, and have a significant effect on the child’s cough with yellow phlegm. 3. Perform anti-infection treatment. Most coughs and yellow phlegm in children are caused by bacterial infections, and the child can be given routine blood tests. If the white blood cells in the routine blood test are high, it is considered to be caused by bacterial infection. Parents can apply cephalosporin to their children for anti-infection treatment, and generally the course of treatment will take about a week, and the symptoms of cough and yellow sputum will slowly subside.