Suye, or perilla leaf, is the dried leaf (or with shoots) of Perilla frutescens, family Labiatae. It is a kind of traditional Chinese medicine. It is pungent in flavor and warm in nature. It belongs to the lung and spleen meridians. It has the effects of relieving the surface and dispersing cold (removing the cold from the muscle surface), moving qi and harmonizing the stomach (regulating the stomach and internal organs by promoting the operation of qi). It is used in treating cold and flu, cough and vomiting, vomiting in pregnancy, fish and crab poisoning. Su Ye with Huo Xiang has the function of dispersing cold, regulating qi and dampness and neutralizing the middle (dispelling dampness, harmonizing the spleen and stomach); Su Ye with Cicada Shell can dispel wind and relieve the symptoms. Suitable for external symptoms (feel the outside world after the main manifestations of evil respiratory symptoms) conditions; Su leaves with almonds outside can dispel cold to drive the sweat, the internal can regulate the lung qi in order to resolve phlegm and cough. Su Ye is a pungent, warm and dispersing product, so it is prudent to take it for people with Yin deficiency, Qi deficiency and warm diseases. It is recommended that patients use medication under the guidance of a doctor, do not take medication on your own, so as not to delay the condition.