A 7-month-old baby has phlegm in his throat and will not spit. Parents should pick up their baby when he or she coughs and gently pat the baby’s back with an empty palm, up, down, left and right. If the baby coughs as soon as a certain part is patted, it means that the baby’s phlegm collects here and should be focused on patting, mostly in the area under the scapula, which is the bottom of the lungs where phlegm tends to accumulate. As long as there is stimulation of phlegm, the baby will cough, and once there is phlegm discharge, the cough will be temporarily relieved. Therefore, patting the back plays the role of broadening the chest and promoting the discharge of phlegm. Clinically, you can also use medicines to relieve cough and resolve phlegm, such as fresh bamboo lee, Anerin granules and Ertan Jing oral liquid.