Perilla has the effect of relieving the appearance of the exterior and dispersing cold, promoting the flow of Qi and broadening the middle, and can be used for the regulation of symptoms caused by external wind-cold, such as malignant cold, fever, nasal congestion, clear runny nose, cough, itchy throat, thin and whitish cough and phlegm. Since it has the effect of both relieving symptoms and moving Qi to broaden the middle, it is especially suitable for external wind-cold colds interspersed with Qi stagnation. In addition, perilla also has an antidote to fish and crab poisoning, which is useful for abdominal pain, diarrhea, nausea and vomiting caused by fish and crab poisoning. There are two kinds of perilla leaves and perilla stems commonly used in clinical practice, among which the action of perilla leaves is biased towards relieving symptoms and is generally used for the treatment of wind-cold symptoms. The action of perilla stems is to move Qi and remove distension, which is mainly applied to the treatment of a series of symptoms such as distention and fullness of the stomach and abdomen, belching, acid reflux, abdominal pain and diarrhea caused by Qi stagnation in the spleen and stomach. However, since the nature of perilla is pungent and warm, it is important to pay attention to the time of decoction and not to cook it for too long to avoid evaporation of the medicinal properties.