伤寒脉滑而厥者，里有热也，白虎汤主之。伤寒脉浮滑，此里有热，表有寒也，白虎汤主之。三
阳合病，腹满身重，难以转侧，口不仁而面垢，谵语遗尿。发汗则谵语，下之则额上生汗，手足逆冷，若自
汗者，白虎汤主之。伤寒脉浮发热无汗其表不解者不可与白虎汤渴欲饮水无表证者白虎加人参汤主之。
伤寒无大热，口燥渴，心烦，背微恶寒者，白虎加人参汤主之。服桂枝汤，大汗出后，大烦渴不解，脉洪
大者，白虎加人参汤主之。伤寒若吐若下后，七八日不解，热结在里，表里俱热，时时恶风，大渴，舌上干
燥而烦，欲饮水数升者，白虎加人参汤主之。太阳与少阳合病，自下利者，与黄芩汤。阳明病若脉浮发热
，渴欲饮水，小便不利者，猪苓汤主之。阳明病，汗出多而渴者，不可与猪苓汤，以汗多胃中燥，猪苓汤
复利其小便故也。
少阴病，下利六七日，咳而呕渴，心烦不得眠者，猪苓汤主之。阳明病，发热汗出者，此为热越，不能
发黄也。但头汗出，身无汗，剂颈而还，小便不利，渴欲饮水浆者，此为瘀热在里，身必发黄，茵陈蒿汤
主之。伤寒七八日身黄如橘子色，小便不利腹微满者，茵陈蒿汤主之。伤寒，身黄发热者，栀子柏皮汤主之。
少阴病，得之二三日以上，心中烦，不得卧，黄连阿胶汤主之。下利欲饮水者，以有热故也，白头翁汤主之。
热利下重者，白头翁汤主之。
按以上诸证，或大热，或大渴，或自汗，或自利，或小便不利，或烦躁不眠，或瘀热发黄，或挟热下利
，总属阳邪在里所致，故以里热证统之。
白虎汤
知母（三钱） 石膏（八钱） 甘草（一钱炙） 粳米（四钱） 水二杯，煮米熟汤成，
大约一杯，温服。以白虎证，乃燥热内郁，故用石膏清金而退热，知母润燥而泄火，甘草、粳米补中而化
气，生津而止渴也。
白虎加人参汤
知母（三钱） 石膏（八钱） 甘草（一钱炙） 粳米（四钱） 人参（一钱
五分） 水煎服。按白虎而加人参，清金益气，生津化水，汗后解渴之神方也。
黄芩汤
黄芩（三钱） 甘草（二钱） 芍药（二钱） 大枣（三枚） 水煎服。按太少合病，少阳
经气郁而克戊土，故用甘草、大枣补其脾经，黄芩、芍药泄其相火，恐利亡脾阴，以致土燥而入阳明也。
猪苓汤
猪苓 苓茯 泽泻 滑石 阿胶（各一钱） 水二杯，煎一杯，去滓，入胶烊化，温服。
按土湿木郁，是生下热，故用二苓滑泽利水而泄湿，阿胶润木而清风也。
茵陈蒿汤
茵陈蒿（六钱） 栀子（五枚） 大黄（二钱） 水三杯，先煮茵陈至杯半，后入诸药
，煮至八分，温服，日三服，小盒饭利。按发黄乃湿热内郁，故用茵陈利水而除湿，栀子、大黄泄热而荡瘀也。
栀子柏皮汤
栀子（六七枚） 黄柏皮（二钱） 甘草（一钱） 水煎服。按身黄发热，原属瘀热所
致，故用甘草培土而补中，栀子、柏皮泄湿而清瘀热也。
黄连阿胶汤
黄连（二钱） 黄芩（五分） 芍药（一钱） 阿胶（一钱五分） 鸡子黄（一枚）
水一杯半，煎八分，去滓，入阿胶尽，小冷入鸡子黄，搅匀温服。按燥土克水而烁心液，液耗水涸，精
不藏神，故用黄连、芩、芍清君火而除烦热，阿胶、鸡子黄补脾精。而滋燥土也。
白头翁汤
白头翁（一钱） 黄连（一钱五分） 黄柏（一钱五
分） 秦皮（一钱五分） 水煎服，不愈更作一服，按厥阴阳复而生内热，故用白头翁清少阳之相火，
黄连清少阴之君火，黄柏、秦皮泄厥阴之湿热也。
In Taiyang disease (Disease of the Taiyang channel), if the pulse is slippery and there is cold extremities (Jue, reversal cold), it indicates heat in the interior; Baihu Tang (White Tiger Decoction) is the primary treatment. In Taiyang disease, if the pulse is floating and slippery, this indicates heat in the interior and cold in the exterior; Baihu Tang (White Tiger Decoction) is the primary treatment. When the three Yang channels (Taiyang, Yangming, Shaoyang) are combined in disease, symptoms include abdominal fullness, heaviness of the body, difficulty in turning over, numbness of the mouth and face with a greasy appearance, delirium (Zhenyu), and urinary incontinence. If sweating methods are misused, delirium will worsen; if purgative methods are misused, sweat will appear on the forehead and cold extremities will occur; if spontaneous sweating is present, Baihu Tang (White Tiger Decoction) is the primary treatment. In Taiyang disease, if the pulse is floating, there is fever but no sweating, and the exterior syndrome is not resolved, Baihu Tang (White Tiger Decoction) should not be given; if there is thirst for water and no exterior syndrome, Baizhu Jia Renshen Tang (White Tiger Decoction plus Ginseng) is the primary treatment. In Taiyang disease, if there is no significant fever but there is dry mouth and thirst, mental restlessness, and slight aversion to cold on the back, Baizhu Jia Renshen Tang (White Tiger Decoction plus Ginseng) is the primary treatment. After taking Guizhi Tang (Cinnamon Twig Decoction), if profuse sweating occurs followed by severe, unrelenting thirst and a flooding pulse, Baizhu Jia Renshen Tang (White Tiger Decoction plus Ginseng) is the primary treatment. After emetic or purgative treatments for Taiyang disease, if the condition persists for seven to eight days with heat結 (juxtaposition) in the interior, simultaneous heat in the interior and exterior, occasional aversion to wind, extreme thirst, a dry tongue with irritability, and a desire to drink several liters of water, Baizhu Jia Renshen Tang (White Tiger Decoction plus Ginseng) is the primary treatment. When Taiyang and Shaoyang channels are combined in disease, with spontaneous diarrhea, Huangqin Tang (Scutellaria Decoction) is administered. In Yangming disease, if the pulse is floating, there is fever, thirst for water, and difficult urination, Zhuling Tang (Polyporus Decoction) is the primary treatment. In Yangming disease, if there is excessive sweating and thirst, Zhuling Tang (Polyporus Decoction) should not be used, because excessive sweating causes dryness in the stomach, and Zhuling Tang (Polyporus Decoction) promotes urination, which would further deplete fluids.
In Shaoyin disease, if diarrhea lasts for six to seven days accompanied by cough, vomiting, thirst, mental restlessness, and inability to sleep, Zhuling Tang (Polyporus Decoction) is the primary treatment. In Yangming disease, if there is fever and sweating, this is called "heat venting" (Re Yue), meaning heat is dispersing outward, so jaundice will not develop. However, if there is only sweating on the head, no sweating on the body, stopping at the neck, difficult urination, and thirst for liquid food, this indicates stagnant heat in the interior, and jaundice will certainly develop; Yinchen Hao Tang (Artemisiae Scopariae Decoction) is the primary treatment. In Taiyang disease, if after seven to eight days the body turns yellow like an orange peel, with difficult urination and mild abdominal fullness, Yinchen Hao Tang (Artemisiae Scopariae Decoction) is the primary treatment. In Taiyang disease, if there is jaundice with fever, Zhizi Bopi Tang (Gardeniae and Phellodendron Bark Decoction) is the primary treatment. In Shaoyin disease, if two to three days have passed since onset, with mental restlessness and inability to lie down and sleep, Huanglian Ejiao Tang (Coptis and Donkey-Hide Gelatin Decoction) is the primary treatment. If there is diarrhea with a desire to drink water, it is due to internal heat; Baitouweng Tang (Pulsatilla Decoction) is the primary treatment. For hot diarrhea with a sensation of rectal tenesmus (Zhongzhong), Baitouweng Tang (Pulsatilla Decoction) is the primary treatment.
According to the above syndromes, whether presenting as high fever, extreme thirst, spontaneous sweating, spontaneous diarrhea, difficult urination, irritability and insomnia, stagnant heat causing jaundice, or heat-complicated diarrhea, they all belong to pathogenic Yang factors residing in the interior; thus, they are collectively categorized as Interior Heat Syndromes.
Baihu Tang (White Tiger Decoction)
Zhimu (Anemarrhenae Rhizoma, 3 qian) Shigao (Gypsum Fibrosum, 8 qian) Gancao (Glycyrrhizae Radix et Rhizoma, 1 qian, honey-fried) Jingmi (Oryza Sativa, 4 qian). Use two cups of water, boil until the rice is cooked and the decoction is ready, yielding approximately one cup. Take warm. Commentary: The Baihu syndrome is caused by internal stagnation of dry-heat. Therefore, Shigao (Gypsum Fibrosum) clears Lung Metal to reduce fever, Zhimu (Anemarrhenae Rhizoma) moistens dryness and drains fire, while Gancao (Glycyrrhizae Radix et Rhizoma) and Jingmi (Oryza Sativa) tonify the Middle Jiao, transform Qi, generate fluids, and relieve thirst.
Baizhu Jia Renshen Tang (White Tiger Decoction plus Ginseng)
Zhimu (Anemarrhenae Rhizoma, 3 qian) Shigao (Gypsum Fibrosum, 8 qian) Gancao (Glycyrrhizae Radix et Rhizoma, 1 qian, honey-fried) Jingmi (Oryza Sativa, 4 qian) Renshen (Panacis Ginseng Radix, 1.5 qian). Decoct in water and take. Commentary: Adding Renshen (Panacis Ginseng Radix) to Baihu Tang clears Lung Metal, benefits Qi, generates fluids, and transforms water; it is a miraculous formula for relieving thirst after sweating.
Huangqin Tang (Scutellaria Decoction)
Huangqin (Scutellariae Radix, 3 qian) Gancao (Glycyrrhizae Radix et Rhizoma, 2 qian) Shaoyao (Paeoniae Radix Alba, 2 qian) Dazao (Jujubae Fructus, 3 pieces). Decoct in water and take. Commentary: In the combination of Taiyang and Shaoyang diseases, the Qi of the Shaoyang channel stagnates and attacks the Spleen/Stomach (Wu Earth). Therefore, Gancao (Glycyrrhizae Radix et Rhizoma) and Dazao (Jujubae Fructus) are used to tonify the Spleen channel, while Huangqin (Scutellariae Radix) and Shaoyao (Paeoniae Radix Alba) drain Ministerial Fire. This prevents the loss of Spleen Yin due to diarrhea, which could lead to dryness of Earth and transmission to the Yangming channel.
Zhuling Tang (Polyporus Decoction)
Zhuling (Polypori Sclerotium, 1 qian) Fuling (Poria, 1 qian) Zexie (Alismatis Rhizoma, 1 qian) Huashi (Talcum, 1 qian) Ejiao (Asini Corii Colla, 1 qian). Use two cups of water, decoct to one cup, strain, add Ejiao (Asini Corii Colla) and melt it. Take warm. Commentary: Dampness in Earth and stagnation of Wood generate lower-heat. Therefore, Zhuling (Polypori Sclerotium), Fuling (Poria), Huashi (Talcum), and Zexie (Alismatis Rhizoma) are used to promote urination and drain dampness, while Ejiao (Asini Corii Colla) nourishes Liver Wood and clears wind-heat.
Yinchen Hao Tang (Artemisiae Scopariae Decoction)
Yinchen Hao (Artemisiae Scopariae Herba, 6 qian) Zhizi (Gardeniae Fructus, 5 pieces) Dahuang (Rhei Radix et Rhizoma, 2 qian). Use three cups of water, first decoct Yinchen Hao (Artemisiae Scopariae Herba) until half a cup remains, then add other herbs, decoct to 0.8 cup. Take warm, three times a day. Cure when urine flows freely. Commentary: Jaundice is caused by internal stagnation of damp-heat. Therefore, Yinchen Hao (Artemisiae Scopariae Herba) promotes urination to remove dampness, while Zhizi (Gardeniae Fructus) and Dahuang (Rhei Radix et Rhizoma) drain heat and purge stagnant heat.
Zhizi Bopi Tang (Gardeniae and Phellodendron Bark Decoction)
Zhizi (Gardeniae Fructus, 6-7 pieces) Huangbapi (Phellodendri Cortex, 2 qian) Gancao (Glycyrrhizae Radix et Rhizoma, 1 qian). Decoct in water and take. Commentary: Body jaundice with fever is originally caused by stagnant heat. Therefore, Gancao (Glycyrrhizae Radix et Rhizoma) is used to cultivate Earth and tonify the Middle, while Zhizi (Gardeniae Fructus) and Huangbapi (Phellodendri Cortex) drain dampness and clear stagnant heat.
Huanglian Ejiao Tang (Coptis and Donkey-Hide Gelatin Decoction)
Huanglian (Coptidis Rhizoma, 2 qian) Huangqin (Scutellariae Radix, 0.5 qian) Shaoyao (Paeoniae Radix Alba, 1 qian) Ejiao (Asini Corii Colla, 1.5 qian) Jizihuang (Galli Ovum Vitellus, 1 piece). Use one and a half cups of water, decoct to 0.8 cup, strain, add Ejiao (Asini Corii Colla) completely, cool slightly, add Jizihuang (Galli Ovum Vitellus), mix well, and take warm. Commentary: Dry Earth conquers Water and scorches Heart fluids. Fluid depletion and Water exhaustion cause Essence to fail to store Spirit. Therefore, Huanglian (Coptidis Rhizoma), Huangqin (Scutellariae Radix), and Shaoyao (Paeoniae Radix Alba) are used to clear Sovereign Fire and relieve irritability and heat, while Ejiao (Asini Corii Colla) and Jizihuang (Galli Ovum Vitellus) tonify Spleen Essence and nourish Dry Earth.
Baitouweng Tang (Pulsatilla Decoction)
Baitouweng (Pulsatillae Radix, 1 qian) Huanglian (Coptidis Rhizoma, 1.5 qian) Huangbai (Phellodendri Cortex, 1.5 qian) Qinpi (Fraxini Cortex, 1.5 qian). Decoct in water and take. If not cured, prepare another dose. Commentary: In Jueyin disease, the recovery of Yang generates internal heat. Therefore, Baitouweng (Pulsatillae Radix) clears Ministerial Fire of Shaoyang, Huanglian (Coptidis Rhizoma) clears Sovereign Fire of Shaoyin, and Huangbai (Phellodendri Cortex) and Qinpi (Fraxini Cortex) drain damp-heat of Jueyin.