Orange peel, also known as tangerine peel and tangerine peel, is a Chinese herb whose main medicinal value is applied to the lung meridian, the heart meridian and the spleen meridian, which can treat diseases of the heart meridian, the lung meridian and the spleen meridian. The main effects of tangerine peel include resolving phlegm and expelling dampness, moistening the lungs and strengthening the spleen, regulating qi and relieving pain. It can be used for coughing and phlegm due to lung-heat and phlegm-dampness, and can also be used for nausea, vomiting, diarrhea, abdominal distension, inappetence, and dullness due to dampness-heat in the spleen and stomach, as well as for indigestion in pediatric patients due to accumulation of food with symptoms of nausea, vomiting, constipation, cough, and fever. The more famous Er Chen Tang has orange peel as an ingredient to treat phlegm-damp cough, which is very widely used in clinical practice. Tangerine peel can also treat symptoms such as breath-holding, stuffiness, and pain in the precordial region due to gas stagnation in the chest. Tangerine peel is usually used as a medicine, and other drugs are more effective.