Si Mo Tang is a traditional Chinese medicine formula, which mainly has the efficacy of moving qi and lowering rebelliousness (promoting the downward movement of upwardly rebellious qi), and relaxing the chest and dispersing knots (relaxing the knotted qi in the chest), and has no so-called ten major efficacies. Si Mu Tang is mainly composed of ginseng, betel nut, sedum, aconite and other herbs, which have the efficacy of promoting the downward movement of rebellious qi, relieving the congestion in the chest and dispersing the knots in the chest, and is the main treatment of Liver-Qi stagnation (poor transportation of qi and blood to the liver, emotional depression), but it is more suitable for the severe cases of Liver-Qi-stagnation and qi-reversal, such as distension of chest and diaphragm, shortness of breath in the upper part of the body, fullness of the lower part of the heart, and inability to think about food and drink, etc. It should be noted that this formula breaks up and breaks down qi, which promotes its downward movement. It should be noted that this formula is strong in breaking Qi and lowering the rebellious force, so the chest and diaphragm distension belongs to the spleen deficiency and kidney deficiency should be used with caution, so as not to aggravate the original condition with improper use of medicines, the specific selection should be made under the guidance of the physician’s diagnosis.