Fresh orange peel cannot be directly infused for drinking, it must be dried to become aged peel before it can be used. Fresh orange peel is called Chen Pi after drying, and it has the effect of regulating qi and resolving phlegm when infused in water. Chen peel is rich in vitamin P and can be used in water to lower blood pressure. Chen peel infused water can promote gastrointestinal tract peristalsis and increase appetite, while elderly people drinking water infused with Chen peel has a certain therapeutic effect on habitual constipation. In addition, Chen peel infused water has the effects of refreshing, preventing motion sickness, curing frostbite and relieving alcohol. However, fresh orange peel contains more tannic acid and volatile oil, direct infusion of water taste bitter, but also stimulate the gastrointestinal tract, so it must be dried first, volatile oil fully dissipated before drinking water. Patients with symptoms such as cough, phlegm and constipation should visit the Chinese medicine department and take Chen Pi and other medications under the guidance of a doctor.