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Treats Shaoyang channel fever. Bitter taste in the mouth, deafness. In cases with a wiry pulse (Xian Mai). It also treats persistent fever from the Taiyang and Yangming channels, with alternating chills and fever (Han Re Wang Lai).

Chai Hu (Bupleuri Radix) - half jin; Huang Qin (Scutellariae Radix) - three liang; Ren Shen (Ginseng Radix et Rhizoma) - three liang; Gan Cao (Glycyrrhizae Radix et Rhizoma) - three liang; Sheng Jiang (Zingiberis Rhizoma Recens) - three liang; Ban Xia (Pinelliae Rhizoma) - half sheng; Da Zao (Jujubae Fructus) - twelve pieces.

Take the above seven herbs, add one dou two sheng of water, decoct to obtain six sheng. Remove the dregs. Decoct again to obtain three sheng. Take one sheng warm, three times daily. If there is irritability in the chest without vomiting, remove Ban Xia and Ren Shen, add Gua Lou Shi (Trichosanthis Fructus) four liang. If there is abdominal pain, remove Huang Qin, add Bai Shao (Paeoniae Radix Alba) three liang. If there is fullness and hardness under the ribs, remove Da Zao, add Mu Li (Ostreae Concha) four liang. If there is palpitation and difficulty in urination, remove Huang Qin, add Fu Ling (Poria) four liang. If there is no thirst but slight external heat, remove Ren Shen, add Gui Zhi (Cinnamomi Ramulus) three liang, cover with blankets to induce a slight sweat for recovery. If there is cough, remove Ren Shen, Da Zao, and Sheng Jiang, add Gan Jiang (Zingiberis Rhizoma) two liang and Wu Wei Zi (Schisandrae Chinensis Fructus) half sheng.

Song verse: Chai Hu eight liang relies on Shaoyang, twelve Jujubes and half sheng Pinellia. Three liang each of Ginger, Ginseng, Scutellaria, and Licorice, removing dregs and re-decocting yields miraculous efficacy.

(Analysis): This formula acts from the interior to the exterior. Sheng Jiang is used for dispersing and unblocking. This is a formula that moves from the interior to the exterior. I note that originally it was listed in the Taiyang chapter because whether in Shang Han or Zhong Feng, the Qi exits via the pivot mechanism; it is not merely resolving Shaoyang pathogenic factors. Various schools have moved it into the Shaoyang chapter, which reflects the shallow understanding of later generations.

Addition and Subtraction Song Verse: For chest irritability without vomiting, remove Pinellia and Ginseng, add one Trichosanthes fruit to boil. If thirsty, remove Pinellia and add Ginseng, totaling four liang five qian before addition. Trichosanthes root clears... [text fragment] ...Mu Li four liang should be ground raw. If palpitations and short urine, remove Scutellaria and add Poria four liang as companion. External slight heat without thirst, remove Ginseng, add Cinnamon twig three liang, do not obstruct the sweat. For cough, remove Ginseng, Jujube, and Fresh Ginger, add about two liang Dried Ginger. Half sheng of Schisandra should be added according to method, its power to warm lungs and scatter cold is unsurpassed.

Zhang Lingshao says: The Qi of Taiyang cannot enter or exit through the chest, reversing between the chest and hypochondrium. Although it does not directly disturb the substantial viscera within, it interferes with the Sovereign Mind (Jun Zhu). Therefore, remove the drying nature of Ban Xia. If there is no vomiting, the middle stomach is harmonious and not deficient, so remove the tonifying nature of Ren Shen. Add the bitter-cold Gua Lou Shi to guide fire-heat downward. If thirsty, the Qi of Yangming Dry Metal is abundant, so remove the acrid nature of Ban Xia, double Ren Shen to generate fluids, and add Gua Lou Gen (Trichosanthis Radix) to draw yin fluids upward. If there is abdominal pain, the pathogen invades the Central Earth, potentially damaging the Yin organs of the Liver; its salty taste can soften hardness, simultaneously removing hypochondriac fullness. Remove the sweet-slowing nature of Da Zao to desire swift action. If there are palpitations and difficult urination, Kidney Qi surges upward while accumulated water remains below; therefore, remove Huang Qin, fearing that bitter-cold may damage the Minister Fire (Jun Huo), add Fu Ling to protect Heart Qi and control water pathogens. If there is no thirst but slight external heat, the disease remains in Taiyang, so there is no need for Ren Shen to generate fluids; instead, add Gui Zhi to resolve the exterior, covering to induce a slight sweat. If there is cough, form-cold injures the Lung, causing Lung Qi to rebel upward; therefore, add the hot nature of Gan Jiang to warm the Lung, and the astringent nature of Wu Wei Zi to direct rebellion downward. In all cases of cough, Ren Shen is removed; this is the secret principle of Changsha. Since Gan Jiang's warmth is used, Sheng Jiang's dispersion is not needed; since Wu Wei Zi's astringency is used, Da Zao's slowing nature is not needed.