It is generally believed that Xiaochaihu Decoction can treat coughs caused by the exchange of cold and heat. Tang Rongchuan, a modern physician, wrote "Treatise on Blood Syndrome" and called the Harmony Method "the first good method for blood syndrome". Xiao Chaihu Decoction was widely used in the treatment of blood syndrome.

"Treatise on Blood Syndrome: Cough": ""Nei Jing" says: Coughs are present in all internal organs, and all of them are concentrated in the stomach and the lungs. The above article divides the lungs and stomach to treat them in detail. Now there is a method that can control the lungs For stomach fire, it is best to add Ophiopogon japonicus; for heart fire, add Coptis chinensis and Angelica sinensis; for liver fire, add Angelica sinensis and Coptis chinensis; for coughs at dusk, add gallnuts and Schisandra chinensis to restrain them; For cough, the fire accumulated from food flows into the lung meridian at Yin time, add radish seeds; for those with phlegm condensation and qi stagnation, add trichosanthes, inula, almond, platycodon, Shegan, and Fritillaria; for those who feel strong after drinking water, add Tingzi. Lift seed, mulberry bark, asarum, and Schisandra chinensis; if it is cold, add dried ginger and cloud tuckahoe; if it is due to external factors, fever, chills, nasal congestion, headache, and cough, it is advisable to add Schizonepeta, perilla, almonds, and mint to Xiaobupleurum decoction. Xiao Bupleurum can clear water and fluids, dissipate stagnant fire, raise clearness and reduce turbidity. It should be used on the left and right, and the addition and subtraction can be done in a correct manner."

The discussion in this paragraph is based on "cough due to fatigue and blood loss", focusing on it. It can be said that Xiaobuihu Decoction is well-known for its ability to clear water and fluid, dissipate stagnant fire, and promote clearness and reduce turbidity.

Then, if the cough is caused by the lack of water and stagnation of fire, you can consider using Xiaochaihu Decoction to treat it. If there is no obvious deficiency, the warming and tonic products in Xiaobuihu Decoction can be used sparingly or not at all.

Chen Xiuyuan, a physician in the Qing Dynasty, pointed out in "The Shi Yi of Medicine": "Since Yu Lin's syndrome, every time he sees a patient with a cough that is ineffective with hundreds of medicines, he will search for a way out of miscellaneous books and find a way out. The treatment method obtained from "Treatise on Febrile Diseases" says: "The upper Jiao can be cleared, the body fluid can be lowered, and the stomach qi can be harmonized." This is the cure of the golden needle... "Treatise on Febrile Diseases" says: " If you have a cough, remove the ginseng and ginger and add dried ginger and Schisandra chinensis. "This is a treatment for typhoid fever, but it is not exclusively a treatment for typhoid fever. The remaining three sentences are "Shang Jiao De Tong", which is often effective in treating cough caused by fatigue.

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