Chen Pi is the peel of oranges in fruits, and the dried body that appears by drying this ripe peel is called Chen Pi. The clinical application of Chen Pi is very wide, and is more suitable for some patients with chest and abdominal fullness, but also for diarrhea, abdominal distension, phlegm, cough, especially for respiratory tract infections, some old phlegm. The more common ones are chronic bronchitis and obstructive emphysema, which are perennial offenders, and each time they have particularly high phlegm, can be treated symptomatically with Chen Pi. In addition to the effect of resolving phlegm, Chen Pi can also strengthen the spleen, which is very effective in treating the lack of appetite for meals and indigestion caused by spleen deficiency, as well as nausea and vomiting caused by gastritis. The application of Chen Pi is best done under the guidance of a doctor.