Generally, babies can drink Chen Pi water one year after birth. If babies have the following symptoms one year after birth, drinking Chen Pi water can play a role in improving them. The first is that the infant has cough and phlegm. After the infant has respiratory infection, it often causes cough and phlegm, at this time, the application of Chen Pi water can play a role in resolving phlegm and relieving cough. Secondly, when infants have vomiting milk, the symptoms of vomiting milk are often caused by the rebellion of stomach qi, so drinking Chen Pi water can play a role in lowering stomach qi and regulating qi.