As one of the top ten Guangdong medicines, only the tangerine peel made from the tea-branch citrus variety grown locally in Xinhui District, Jiangmen City, Guangdong Province is called Xinhui tangerine peel, which has the following efficacy and value: 1. Regulating Qi and Strengthening the Spleen Xinhui tangerine peel contains volatile oil components, which have a mild stimulating effect on the smooth muscles of the gastrointestinal tract, can promote the secretion of digestive juices, and help digest food. At the same time, it can also help expel the accumulated gas in the intestines and increase appetite, thereby improving the nausea, vomiting, abdominal distension, abdominal fullness and other discomfort symptoms caused by spleen and stomach disharmony and spleen and stomach weakness. Therefore, Xinhui tangerine peel is often used in the treatment of regulating Qi and strengthening the spleen. 2. Drying dampness and resolving phlegm Xinhui tangerine peel is bitter, warm and dry in nature, and belongs to the lung meridian. It has a good improvement effect on symptoms such as chest tightness, shortness of breath, cough, and coughing up white sputum caused by phlegm and dampness blockage. The limonene component it contains can stimulate the bronchi, cause increased glandular secretion, and make sputum easy to cough up, thereby achieving the effect of expectoration. Therefore, Xinhui tangerine peel also has a significant effect in treating symptoms such as cough and sputum. 3. Promote digestion Xinhui tangerine peel can not only promote gastric juice secretion, but also speed up the decomposition and metabolism of fat and protein in food, so as to complete the digestion and absorption of food as soon as possible. It has a significant conditioning effect on human symptoms such as indigestion, loss of appetite and abdominal distension and pain. 4. Lower blood pressure and prevent aging A volatile oil substance called methyl hesperidin in Xinhui tangerine peel can help dilate blood vessels, increase coronary flow, and thus lower blood pressure. In addition, the extract in tangerine peel can also enhance humoral and cellular immunity, reduce the peroxidation of oxygen free radicals, antioxidant lipids and other structures, and thus play an anti-aging role. How to eat: Xinhui tangerine peel can usually be soaked in water, broken into pieces and drunk as tea, or soaked with tea leaves and then drunk. It can also be boiled as medicine or boiled with other medicines.