Chen Pi has the effect of strengthening the spleen, relieving dampness and resolving phlegm. For some flatulence, stomach pain and abdominal distension caused by indigestion, it is good for the spleen and stomach imbalance and will adjust this state, and can be used in patients with spleen and stomach stagnation and spleen and stomach imbalance. It also has the effect of expectorant and resolving phlegm. When there is a lot of phlegm, you can drink some brewed Chen Pi water, which can have the effect of resolving phlegm, and it also has the effect of calming asthma. So the more easily available old peel can be used as a backup at home in daily life, when there is indigestion or phlegm or asthma, it can be used as a substance for daily brewing and easy drinking.