暑病身热自汗，口渴面垢而已，余证皆后传变，或兼内伤，必先问其人素虚胃弱，或大病大劳后，纵暑中伤者，
宜清暑益气，素强盛壮实，无虚损病者，宜祛暑和中，自袭暑气而言曰中暑，自被日逼而言曰中 ，然暑初入，
自口鼻牙颊，达于心主胞络，以火从火，故古法治暑，取冷水灌溉勿咽。
即暑 证，但以手足搐搦为风，手足逆冷为厥，厥与伤寒热厥义同，黄连香薷饮。暑风乃劳役内动五脏之火，与
外火交炽，则金衰木旺生风，香薷饮加羌活六和汤，合消风散。素有痰饮，因暑触动痰热生风者，六和汤合星香
散。
暑毒痰火，窒塞胸中，量体虚实吐之，火郁发之之义也。如痰喘气急痞寒，入药不得者，急煎六和汤，调麝二厘服。
绞肠痧腹痛不可忍，或连心痛，展转在地，手足亦冷，乃肠绞缩在腹，须臾能死。用热汤调盐一两，灌入即安，或
再用陈艾、陈樟木、陈壁土各等分，水煎连进三四服。
若道途卒倒，汤药不便，恐气脱难治，急扶阴凉处，不可卧湿冷地，掬道上热土放脐上，拨开作窍，令人尿与其中，
待求生姜或蒜嚼，以热汤或童便送下，外用布蘸。
按∶入门一书，虽系时出，中间亦颇详细，故录其数条以备览，暑 一气也，若中暑中 之分则强矣。
论曰∶此事难知，伤暑有二，动而伤暑，心火大盛，肺气全亏，故身脉洪大，动而火胜者，热伤气也，辛苦人多得
之，
白虎加人参汤。静而伤暑，火胜金位，肺气出表，故恶寒脉沉疾，静而湿胜者，身重也，安乐之人多受之，白虎
加苍术汤。伤暑必自汗，背寒面垢，或口热烦闷，或头疼发热，亦有身痛者，更有痛甚，身如骨碎者，神思倦怠殊甚，
暑伤气而不伤形故
也。但身体不痛，与感风寒异，宜香薷饮、六和汤。呕而渴者，浸冷香薷汤，或五苓散，兼吞消暑丸。呕不止者，
枇杷叶散去茅根，吞来复丹。呕而痰，却暑散，吞消暑丸，或小半夏茯苓汤，或消暑饮。又有不泻而腹干痛者，
六和汤煎熟，调苏合香丸。暑先入心者，心属南方离火，各从其类，小肠为心之府，利心经，暑毒使由小肠中出，
五苓散利小便，治暑上剂也。暑月身痒如针刺，间有赤肿处，亦名暑风，末子六和汤，和消风散，酒调服。暑风
而加以吐泻交作者，六和汤、藿香正气散，各半贴，加全蝎三个。有暑毒客于上焦，胸膈痞塞，汤药至口即
出，不能过关，或上气喘急，六和汤浸冷，调入麝香少许。暑气久而不解，遂成伏暑，内外俱热，烦躁自汗，大渴
喜冷，宜香薷饮，加黄连一钱，继进白虎汤。若服药不愈者，暑毒深入，结热在里，谵语烦汤，不欲近衣，大便秘
结，小便赤涩，当用调胃承气汤，或三黄石膏汤。
按∶承气汤必不可转用。
暑病表现为身体发热、自然出汗、口渴以及面部污垢，其余症状均为后续传变所致，或兼有内伤。此时必须先询问患者平素是否脾胃虚弱，或在大病、过度劳累之后发病。即使是中暑伤邪者，若属此类情况，宜采用清暑益气法；若患者体质强壮结实，无虚损病症者，则宜采用祛暑和中法。从感受暑气本身而言称为“中暑”，从被烈日逼迫而言称为“中暍”。然而暑邪初入时，自口鼻牙颊进入，直达心主与胞络，以火同气相求，所以古法治疗暑病，取冷水浇灌（体表）但不让患者吞咽。
即上述暑证，若出现手足抽搐称为“风”，手足逆冷称为“厥”，厥与伤寒中的热厥含义相同，可用黄连香薷饮。暑风乃因劳役导致五脏之火内动，与外感之火交相炽盛，致使金（肺）衰木（肝）旺而生风，可用香薷饮加羌活，或六和汤，合消风散。平素有痰饮，因暑热触动痰热生风者，用六和汤合星香散。
暑毒与痰火窒塞于胸中，需根据体质的虚实采用催吐法，这是“火郁发之”的含义。如出现痰喘、气急、痞满寒冷，药物无法服下者，急煎六和汤，调入麝香二厘服用。
绞肠痧腹痛剧烈难忍，或牵连心痛，辗转反侧在地，手足亦冷，乃是肠道绞缩在腹中，片刻之间即可致死。用热汤调食盐一两，灌入后即可安宁，或者再用陈艾、陈樟木、陈壁土各等分，水煎连续服用三四次。
若在道路上突然昏倒，汤药不便服用，恐怕气脱难以救治，急忙扶至阴凉处，不可卧于湿冷之地，捧起路上的热土放在脐上，拨开做成小孔，让人尿液滴入其中，等待找到生姜或大蒜嚼碎，用热汤或童便送下，外用布蘸取药液擦拭。
按语：《医学入门》一书，虽然是当时刊行，但中间内容颇为详细，故摘录其数条以备阅览。暑只是一气，若强行区分中暑与中暍则过于牵强。
论述说：此事难以知晓，伤暑有两种情况。动而伤暑，心火大盛，肺气全亏，所以脉象洪大，动而火胜者，是热伤了气，辛苦劳作之人多得此病，用白虎加人参汤。静而伤暑，火胜金位，肺气出于体表，所以恶寒脉沉疾，静而湿胜者，身体沉重，安乐之人多受此病，用白虎加苍术汤。伤暑必然自汗，背部怕冷，面部污垢，或口热烦闷，或头痛发热，也有身体疼痛的，更有疼痛剧烈，身体感觉像骨头碎裂一样，神思倦怠非常严重，这是因为暑伤气而不伤形体的缘故。只要身体不痛，就与感受风寒不同，宜用香薷饮、六和汤。呕吐且口渴者，用浸冷香薷汤，或五苓散，兼吞消暑丸。呕吐不止者，用枇杷叶散去茅根，吞服来复丹。呕吐且有痰者，用却暑散，吞服消暑丸，或小半夏茯苓汤，或消暑饮。又有不腹泻但腹部干痛者，用六和汤煎熟，调服苏合香丸。暑邪先入心者，心属南方离火，各从其类，小肠为心之腑，利心经，使暑毒从小肠中排出，五苓散利小便，是治疗暑病的上等方剂。暑月身体瘙痒如针刺，间或有赤肿处，也名为暑风，用六和汤末子，合消风散，酒调服。暑风而加上吐泻交替发作的，用六和汤、藿香正气散，各半贴，加全蝎三个。有暑毒客居上焦，胸膈痞塞，汤药到口即吐出，不能过关，或上气喘急，用六和汤浸冷，调入少许麝香。暑气久而不解，遂成伏暑，内外俱热，烦躁自汗，大渴喜冷饮，宜用香薷饮，加黄连一钱，继进白虎汤。若服药不愈者，暑毒深入，结热在里，谵语烦热，不欲靠近衣物，大便秘结，小便赤涩，当用调胃承气汤，或三黄石膏汤。
按语：承气汤绝不可随意转用。
Summerheat disease presents with body heat, spontaneous sweating, thirst, and a greasy appearance of the face; other symptoms are due to subsequent transmission or concurrent internal injury. One must first inquire whether the patient has always had weak spleen and stomach, or if this occurred after a major illness or excessive labor. Even in cases of summerheat invasion, if such conditions apply, one should employ the method of clearing summerheat and benefiting qi (Qing Shu Yi Qi). If the patient is constitutionally strong and robust without deficiency, one should employ the method of dispelling summerheat and harmonizing the middle (Qu Shu He Zhong). Speaking from the perspective of contracting summerheat qi directly, it is called "Zhong Shu" (Heatstroke); speaking from the perspective of being forced by the sun, it is called "Zhong Yue" (Sunstroke). However, when summerheat initially enters, it goes through the mouth, nose, teeth, and cheeks, reaching the Heart Master and Pericardium collaterals. Since fire follows its own kind, ancient methods for treating summerheat involved pouring cold water on the body without letting the patient swallow it.
Regarding these summerheat syndromes, if there are spasms and convulsions of the hands and feet, it is termed "Wind"; if there is coldness of the extremities, it is termed "Jue" (Cold Reversal), which shares the same meaning as Heat Jue in Cold Damage diseases; Huanglian Xiangru Yin (Coptis and Elsholtzia Decoction) is indicated. Summerheat Wind arises from internal movement of the fire of the five zang organs due to overwork, which blazes together with external fire, causing Metal (Lung) to weaken and Wood (Liver) to flourish, generating wind. Xiangru Yin added with Qianghuo, or Liuhe Tang (Six Harmonies Decoction), combined with Xiaofeng San (Wind-Dispersing Powder), is used. For those who habitually have phlegm-fluids, where summerheat stirs up phlegm-heat generating wind, Liuhe Tang combined with Xingxiang San (Arisaema and Costus Powder) is used.
Summerheat toxin and phlegm-fire obstructing the chest require emesis according to the deficiency or excess of the body's constitution; this embodies the principle of "releasing stagnant fire." In cases of phlegmatic panting, urgent breathing, fullness, and coldness where medicines cannot be taken, urgently decoct Liuhe Tang and administer with 2 li of Moschus (She Xiang).
Intestinal colic (Jiao Chang Sha) involves unbearable abdominal pain, possibly radiating to the heart, with the patient rolling on the ground and cold extremities; this is intestinal contraction within the abdomen, which can be fatal in an instant. Administer one tael of salt dissolved in hot water via灌 (irrigation/gavage) to bring relief. Alternatively, use equal parts of aged Ai Ye (Artemisiae Folium), aged Zhang Mu (Cinnamomi Cortex), and aged Bi Tu (Wall Earth), decocted in water, administered continuously for three to four doses.
If sudden collapse occurs on the road making oral medication inconvenient, fearing qi collapse which is difficult to treat, urgently move the patient to a cool, shady place, avoiding lying on wet or cold ground. Scoop up warm earth from the path, place it on the umbilicus, make a small hole in it, and allow urine to drip into it. Wait to find fresh Ginger or Garlic to chew, swallowing with hot water or Child's Urine (Tong Bian), and wipe externally with cloth soaked in the mixture.
Note: The book *Yixue Rumen* (Introduction to Medicine), though published in its time, contains detailed content; thus, several excerpts are recorded for reference. Summerheat is a single qi; artificially distinguishing between Zhong Shu and Zhong Yue is forced.
It is stated: This matter is difficult to understand. Injury by summerheat has two types. Dynamic injury by summerheat involves excessive Heart Fire and complete deficiency of Lung Qi, resulting in a surging pulse. When movement leads to fire prevailing, it is heat injuring qi; hard-working people often contract this, treated with Baihu Jia Renshen Tang (White Tiger Plus Ginseng Decoction). Static injury by summerheat involves fire prevailing over Metal, with Lung Qi emerging to the exterior, resulting aversion to cold and a deep, rapid pulse. When stillness leads to dampness prevailing, the body feels heavy; leisurely people often suffer this, treated with Baihu Jia Cangzhu Tang (White Tiger Plus Atractylodis Macrocephalae Rhizoma Decoction). Injury by summerheat necessarily involves spontaneous sweating, coldness of the back, greasy face, or heat in the mouth with vexation, headache, fever, or body pain. Some experience severe pain, feeling as if bones are shattered, with extreme mental fatigue. This is because summerheat injures qi but not form. If the body does not ache, it differs from contracting wind-cold; Xiangru Yin or Liuhe Tang is appropriate. For vomiting with thirst, use Xiangru Tang (Elsholtzia Decoction) cooled in ice, or Wuling San (Five Ingredient Powder with Poria), combined with Swallowing Xiaoshu Wan (Relieving Summerheat Pill). For persistent vomiting, use Pipaye San (Loquat Leaf Powder) minus Gen Gen, swallowing Laifu Dan. For vomiting with phlegm, use Queshu San, swallowing Xiaoshu Wan, or Xiao Banxia Fuling Tang (Minor Arisaema and Poria Decoction), or Xiaoshu Yin. For those without diarrhea but with dry abdominal pain, decoct Liuhe Tang and mix with Suhexiang Wan (Styrax Pill). When summerheat enters the Heart first, since the Heart belongs to South Li Fire and things follow their kind, and the Small Intestine is the House of the Heart, benefiting the Heart meridian allows summerheat toxin to exit via the Small Intestine. Wuling San promotes urination and is a superior formula for treating summerheat. During summer months, if the body itches like needle pricks, occasionally with red swelling, it is also named Summerheat Wind; take powder of Liuhe Tang mixed with Xiaofeng San, taken with wine. For Summerheat Wind accompanied by alternating vomiting and diarrhea, use half a dose each of Liuhe Tang and Huoxiang Zhengqi San (Agastache Powder to Rectify the Qi), adding three Quanxie (Scorpio). If summerheat toxin lodges in the Upper Jiao, causing chest and diaphragm obstruction where medicine is vomited immediately upon entering the mouth or cannot pass through, or with upper asthma urgency, use Liuhe Tang cooled in ice, mixed with a small amount of Moschus. If summerheat qi persists unresolved, it becomes Fu Shu (Latent Summerheat), with heat inside and out, vexation, spontaneous sweating, great thirst preferring cold drinks; use Xiangru Yin plus 1 qian of Huanglian (Coptidis Rhizoma), followed by Baihu Tang (White Tiger Decoction). If medication fails, summerheat toxin has penetrated deeply, with constrained heat in the interior, delirious speech, irritability, desire to remove clothing, constipation, and dark, scanty urine; Tiaowei Chengqi Tang (Regulate the Stomach and Order the Qi Decoction) or Sanhuang Shigao Tang (Three Yellows and Gypsum Decoction) should be used.
Note: Chengqi Tang must absolutely not be used arbitrarily.