治少阳经发热。口苦耳聋。其脉弦者。又治太阳阳明二经发热不退。寒热往来。
柴胡（半斤） 黄芩（三两） 人参（三两） 甘草（三两） 生姜（三两） 半夏（半
升
上七味。以水一斗二升。煮取六升。去滓。再煎。取三升。温服一升。日三服。若胸中
烦而
四两。若腹中痛者。去黄芩。加芍药三两。若胁下痞硬。去大枣。加牡蛎四两。若心下悸小
便不利者。去黄芩。加茯苓四两。若不渴外有微热者。去人参。加桂枝三两。温覆取微汗愈。
若
歌曰 柴胡八两少阳凭。枣十二枚夏半升。三两姜参芩与草。去渣重煎有奇能。
中而达外。生姜所以发散宣通者也。此从内达外之方也。愚按原本列于太阳。以无论伤
寒中
之气从枢以外出。非解少阳也。各家俱移入少阳篇。到底是后人识见浅处。
加减歌曰 胸烦不呕除夏参。蒌实一枚应加煮。若渴除夏加人参。合前四两五钱与。蒌
根清
蛎四两应生杵。心下若悸尿不长。除芩加茯四两侣。外有微热除人参。加桂三两汗休阻。咳
除参枣并生姜。加入干姜二两许。五味半升法宜加。温肺散寒力莫御。
张令韶曰。太阳之气。不能从胸出入。逆于胸胁之间。虽不干动在内有形之脏真。而亦
干动
君主。故去半夏之燥。不呕者。中胃和而不虚。故去人参之补。加栝蒌实之苦寒导火热以下
降也。渴者。阳明
燥金气盛。故去半夏之辛。倍人参以生津。加栝蒌根引阴液以上升也。腹中痛者。邪干
中土
能破肝之牝脏。其味咸能软坚。兼除胁下之痞。去大枣之甘缓。欲其行之捷也。心下悸小便
不利者。肾气上乘而积水在下。故去黄芩。恐苦寒以伤君火。加茯苓保心气以制水邪也。不
渴外有微热者。其病仍在太阳。故不必生液之人参。宜加解外之桂枝覆取微汗也。咳者。形
寒伤肺。肺气上逆。故加干姜之热以温肺。五味之敛以降逆。凡咳皆去人参。长沙之秘旨。
既有干姜之温。不用生姜之散。既用五味之敛。不用大枣之缓也。
治疗少阳经发热。口苦耳聋。脉象弦的。又治疗太阳、阳明二经发热不退。寒热往来。
柴胡（半斤） 黄芩（三两） 人参（三两） 甘草（三两） 生姜（三两） 半夏（半升）
大枣（十二枚）
以上七味药，用水一斗二升，煮取六升，去渣滓。再煎煮，取三升。温服一升，每日三次服用。如果胸中烦闷而不呕吐的，去掉半夏、人参，加栝楼实四两。如果腹中痛的，去掉黄芩，加芍药三两。如果胁下痞硬，去掉大枣，加牡蛎四两。如果心下悸动、小便不利的，去掉黄芩，加茯苓四两。如果不渴、体表有微热的，去掉人参，加桂枝三两，盖被取微汗而愈。如果咳嗽的，去掉人参、大枣、生姜，加入干姜二两，五味子半升。
歌诀说：柴胡八两凭少阳，枣十二枚夏半升。三两姜参芩与草，去渣重煎有奇能。
（方义解析）：此方从内达外。生姜所以发散宣通。这是从内达外的方剂。我认为原本将其列于太阳篇，是因为无论伤寒中风，其气从枢机以外出，并非单纯解少阳之邪。各家都将其移入少阳篇，这到底是后人见识浅薄之处。
加减歌诀说：胸烦不呕除夏参，蒌实一枚应加煮。若渴除夏加人参，合前四两五钱与。蒌根清……（此处原文似有脱漏或排版问题，依上下文补全意译）……牡蛎四两应生杵。心下若悸尿不长，除芩加茯四两侣。外有微热除人参，加桂三两汗休阻。咳除参枣并生姜，加入干姜二两许。五味半升法宜加，温肺散寒力莫御。
张令韶说：太阳之气，不能从胸出入，逆于胸胁之间，虽不干动在内有形之脏真，而亦干动君主。故去半夏之燥，不呕者，中胃和而不虚，故去人参之补。加栝楼实之苦寒导火热以下降也。渴者，阳明燥金气盛，故去半夏之辛，倍人参以生津，加栝楼根引阴液以上升也。腹中痛者，邪干中土，能破肝之牝脏，其味咸能软坚，兼除胁下之痞，去大枣之甘缓，欲其行之捷也。心下悸小便不利者，肾气上乘而积水在下，故去黄芩，恐苦寒以伤君火，加茯苓保心气以制水邪也。不渴外有微热者，其病仍在太阳，故不必生液之人参，宜加解外之桂枝覆取微汗也。咳者，形寒伤肺，肺气上逆，故加干姜之热以温肺，五味之敛以降逆。凡咳皆去人参，长沙之秘旨。既有干姜之温，不用生姜之散；既用五味之敛，不用大枣之缓也。
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.