暑为阳邪，心属离火，故暑先入心，从其类也。巳月六阳尽出于地上，此气之浮也。经
曰∶
暑。
伤暑
巨室
中暑
则肺
治一切感冒暑气，皮肤蒸热，头痛头重，自汗肢倦，或烦渴，或吐泻（暑为阳热，故蒸
热；暑必兼湿，故自汗；暑湿干心则烦，干肺则渴，干脾则吐利，上蒸于头则重而痛；暑能
伤气，
香薷（一两） 浓朴（姜汁炒） 扁豆（炒。五钱） 黄连（姜炒。三钱。）冷服（香
薷辛热，必
此手少阴、手足太阴、足阳明药也。香薷辛温香散，能入脾肺气分，发越阳气，以散皮
肤之
清；
饮冷
则愈
变，
刻害
头
引
附子，此推《内经》舍时从证之法也。香薷饮乃散阳气、导真阴之剂，若元气虚、犯房劳而
用
中
不
中
渴
属天气，尝中
药，泻心数汤
本方除扁豆，名黄连香薷饮∶治中暑热盛，口渴心烦；或下鲜血。本方除黄连，名三物
香薷
香薷饮∶治中暑湿盛（热盛则加黄连以泻心火，湿盛则加茯苓、木瓜以去脾湿）。再加人参、
黄、白术、陈皮，名十味香薷饮∶治暑湿内伤，头重吐利，身倦神昏（加参 者，所以补
肺益气；加苓术陈草者，所以助脾调中；木瓜酸温利湿收脱，能于土中泻木，平肝而和脾；
此外感而兼内伤之证，故用香薷清暑解表，而以诸药专调中宫也）。三物香薷饮加羌活、防
风∶治中暑兼中风，僵仆搐搦。或再加黄 、芍药（暑月得病，手足搐搦，如惊风状，名暑
风）。三物香薷饮加干葛，名香薷葛根汤∶治暑月伤风咳嗽昂按∶（此方当治伤暑泄泻）。本
方加茯神∶治瘅疟（独热不寒曰瘅疟，当责之暑邪。暑先入心，故加茯神以宁心）。本方用
香薷、扁豆、浓朴、木瓜、甘草，加香附、陈皮、苍术、紫苏，名二香散（盖合香薷饮、香
苏饮为一方也；治外感
暑邪属于阳邪，心在五行中属离火，因此暑邪容易先侵犯心脏，这是同类相感的道理。农历四月（巳月）时，六条阳经之气全部出于地面，这种气机表现为浮越。《内经》说：暑邪伤人……
治疗一切因感受暑气引起的病症，如皮肤蒸腾发热、头痛头重、自汗、肢体倦怠，或者心烦口渴，或者呕吐腹泻。（这是因为暑为阳热之邪，所以导致皮肤蒸热；暑邪必然兼夹湿邪，所以导致自汗；暑湿干扰心神则心烦，干扰肺脏则口渴，干扰脾脏则呕吐泄泻，上蒸于头部则头重而痛；暑邪能损伤人体正气。）
香薷（一两）、浓朴（用姜汁炒制）、扁豆（炒制，五钱）、黄连（用姜炒制，三钱）。冷服。（因为香薷性味辛热，必须……[原文此处有缺漏]……这是手少阴心经、手足太阴肺脾经以及足阳明胃经的药物。香薷气味辛温芳香发散，能够进入脾肺的气分，发越阳气，以疏散皮肤之……[原文此处有缺漏]……清解；若……饮冷……则痊愈……变证……刻害……头……引……附子，这是推演《内经》“舍时从证”的治疗法则。香薷饮是发散阳气、引导真阴的方剂，如果元气虚弱、因房劳过度而患病……中……不……中……渴……属天气，尝中……药，泻心数汤……
本方去掉扁豆，名为黄连香薷饮：治疗中暑热盛，口渴心烦；或者下鲜血。本方去掉黄连，名为三物香薷饮∶治疗中暑湿盛（热盛则加黄连以清泻心火，湿盛则加茯苓、木瓜以去除脾湿）。再加人参、黄芪、白术、陈皮，名为十味香薷饮：治疗暑湿内伤，头重、呕吐泄泻，身体疲倦、神志昏沉（加入参，是为了补益肺气；加入茯苓、白术、陈皮、甘草，是为了帮助脾胃、调理中焦；木瓜酸温，利湿收敛固脱，能在土中泻木，平肝而调和脾胃；这是外感兼内伤的证候，所以用香薷清暑解表，而以其他药物专门调理中宫）。三物香薷饮加羌活、防风：治疗中暑兼中风，突然僵倒、抽搐。或者再加黄芪、芍药（暑月得病，手足抽搐，像惊风的样子，称为暑风）。三物香薷饮加干葛，名为香薷葛根汤：治疗暑月伤风咳嗽。汪昂按语：（此方应当用于治疗伤暑导致的泄泻）。本方加茯神：治疗瘅疟（只有发热没有恶寒称为瘅疟，应当归责于暑邪。暑邪先入心，所以加茯神以宁心安神）。本方用香薷、扁豆、浓朴、木瓜、甘草，加上香附、陈皮、苍术、紫苏，名为二香散（大概是合香薷饮和香苏饮为一首方剂；治疗外感……[原文截断]
Heat (Shu) is a Yang pathogen. The Heart belongs to Li Fire in the Five Elements; therefore, Heat pathogens tend to invade the Heart first, following the principle of resonance between similar entities. In the sixth lunar month (Si Month), the Qi of the six Yang meridians emerges fully above ground, indicating that this Qi is floating and ascending. The Classic states: Heat...
This formula treats all conditions caused by contracting Heat Qi, characterized by steaming fever of the skin, headache with heaviness, spontaneous sweating, limb fatigue, or irritability and thirst, or vomiting and diarrhea. (Since Heat is a Yang-Heat pathogen, it causes steaming fever; Heat invariably combines with Dampness, causing spontaneous sweating; when Heat-Damp disturbs the Heart, there is irritability; when it disturbs the Lung, there is thirst; when it disturbs the Spleen, there is vomiting and diarrhea; when it steams upward to the head, there is heaviness and pain; Heat can injure Qi.)
Xiangru (Moslae Herba, 1 liang), Houpo (Magnoliae Officinalis Cortex, stir-fried with ginger juice), Bian Dou (Vigna Radiata Seed, fried, 5 qian), Huanglian (Coptidis Rhizoma, stir-fried with ginger, 3 qian). Take cold. (Because Xiangru is acrid and hot, it must... [text missing] ... This is a prescription for the Hand-Shaoyin (Heart), Hand-Taiyin (Lung), Foot-Taiyin (Spleen), and Foot-Yangming (Stomach) meridians. Xiangru is acrid, warm, aromatic, and dispersing; it enters the Qi level of the Spleen and Lung, promotes the emergence of Yang Qi, and disperses... [text missing] ... clearing; if... drinking cold... then recovery... transformation... severe harm... head... leading... Fuzi (Aconiti Lateralis Radix Praeparata), this deduces the method of "abandoning the season to follow the syndrome" from the *Neijing*. Xiangru Yin is a formula that disperses Yang Qi and guides True Yin. If Yuan Qi is deficient, or illness results from sexual exhaustion... middle... not... middle... thirst... belongs to Heaven's Qi, often... medicine, several formulas for purging the Heart...
Removing Bian Dou from this formula yields Huanglian Xiangru Yin: It treats severe Heat in Summerheat stroke, with thirst and irritability; or hematochezia (passing fresh blood). Removing Huanglian yields Sanwu Xiangru Yin: It treats Summerheat stroke with predominant Dampness (if Heat is severe, add Huanglian to purge Heart Fire; if Dampness is severe, add Fuling and Mugua to remove Spleen Dampness). Adding Renshen, Huangqi, Baizhu, and Chenpi yields Shiwei Xiangru Yin: It treats internal injury from Summerheat-Damp, characterized by heavy head, vomiting and diarrhea, physical fatigue, and mental confusion. (Renshen is added to tonify Lung Qi; Fuling, Baizhu, Chenpi, and Gancao are added to assist the Spleen and regulate the Middle Jiao; Mugua is sour and warm, promoting diuresis to resolve Dampness and astringing to prevent collapse; it drains Wood within Earth, calms the Liver, and harmonizes the Spleen. This represents a syndrome of external contraction combined with internal injury; thus, Xiangru is used to clear Summerheat and release the exterior, while other herbs specifically regulate the Central Palace). Adding Qianghuo and Fangfeng to Sanwu Xiangru Yin treats Summerheat stroke complicated by Wind-stroke, featuring sudden collapse and convulsions. Alternatively, adding Huangqi and Shaoyao (Illness contracted in the Summer months, with convulsions of the limbs resembling wind-stroke, is named Shufeng/Summerwind). Adding Gegen (Puerariae Lobatae Radix) to Sanwu Xiangru Yin yields Xiangru Gegen Tang: It treats cough due to Wind-cold contracted during Summerheat. Commentator Wang Ang notes: (This formula should treat diarrhea caused by Summerheat injury). Adding Fushen (Poria with Hostwood) treats Dan Nue (Tertian Malaria with heat only and no chills, attributed to Summerheat pathogen. Since Heat enters the Heart first, Fushen is added to calm the Heart). Using Xiangru, Bian Dou, Houpo, Mugua, and Gancao, plus Xiangfu, Chenpi, Cangzhu, and Zisu yields Erxiang San (Essentially combining Xiangru Yin and Xiangsu Yin into one formula; it treats external contraction... [text truncated]