避疫之法。惟在节欲节劳。仍勿忍饥以受其气。○胆为中正之官。胆气壮。则十一经之
气赖以俱壮。邪不能入。○医统云男人病邪气出于口女人病邪气出于前阴。其对坐之间。必
须识其向背。或以雄黄涂鼻孔中。从容察位而入。
洁古谓动而得之为中热。静而得之为中暑。暑阴而热阳。未免称名不正。盖夏日炎炎。
人触之则生暑病。即为中热。无非动以得之。他若畏热求凉。凉袭于外。则为发热恶寒头痛
项强等症。宜九味羌活汤以散之。凉中于中。则为吐泻肠痛。宜理中汤以温之。若兼烦躁则
间用凉水调下大顺散病虽作于暑月。不得以暑病名之也。大抵暑症辨法。以口渴烦心溺赤身
热脉洪而虚为的。轻者为伤。以六一散荡涤热气。从小便而泄。若暑热闭郁而无汗。必用香
薷饮。发越阳气。彻上彻下。解表兼利小便。则愈。重者为中。大渴大汗。宜白虎加人参汤
主之。或汗出身热而两足冷者。是暑而挟湿。宜白虎加苍术汤主之。若中暑昏闷不醒并伏暑
停食吐泻。用半夏四两醋煮茯苓甘草各二两。共为末。以生姜汁为丸。如绿豆大。每服五六
十丸。开水送下。若昏愦不醒者。研碎灌之立苏。此孙真人之神方也。（名消暑丸。为暑症
第一神方。）至于生脉散清暑益气汤。为暑伤元气而立。或预服以却暑。或病愈后以收功。
非暑病正方也。
六一散（五十二） 香薷饮（四十一） 清暑益气汤（九十六） 生脉散（七十八）
避疫的方法，关键在于节制欲望和避免过度劳累，同时不要忍受饥饿以免受到疫气的侵害。○胆被称为“中正之官”，如果胆气壮实，那么其他十一经脉的气血也会随之壮实，邪气就无法侵入。○《医统》记载：男子感受的邪气多从口部进入，女子感受的邪气多从前阴（生殖器）进入。在面对面坐的时候，必须识别对方的朝向背向，或者用雄黄涂抹在鼻孔中，从容地观察位置后再进入。
金代医家张洁古认为，因活动而得的是“中热”，因静止而得的是“中暑”。暑属阴而热属阳，这种命名未免不够准确。大概夏日炎炎，人接触它则产生暑病，即为中热，无非是因为活动而得的。其他情况如畏热求凉，凉气侵袭体表，则出现发热、恶寒、头痛、项强等症状，适宜用九味羌活汤来发散；凉气侵入体内，则出现呕吐、腹泻、肠痛等症状，适宜用理中汤来温补。如果兼有烦躁症状，则间歇性地用凉水送服大顺散。虽然病症发作于暑月，但不能因此就称之为暑病。大致上辨别暑症的方法，以口渴、心烦、小便赤红、身体发热、脉象洪大而虚为确切的指征。轻症的称为“伤暑”，用六一散荡涤热气，从小便排出。如果是暑热闭郁且无汗，必须使用香薷饮，发越阳气，彻上彻下，既解表又利小便，这样就能痊愈。重症的称为“中暑”，表现为大渴、大汗，适宜用白虎加人参汤主治。或者出汗后身体发热但两脚冰冷，这是暑邪夹杂湿气，适宜用白虎加苍术汤主治。如果是中暑导致昏闷不醒，以及伏暑停滞食物导致的呕吐腹泻，可用半夏四两（醋煮）、茯苓二两、甘草二两，共研为末，用生姜汁做成丸药，大小如绿豆。每次服用五六十丸，开水送下。如果昏迷不醒，将药研碎灌入，立刻苏醒。这是孙思邈真人留下的神方。（名为消暑丸，是治疗暑症的第一神方。）至于生脉散和清暑益气汤，是为了暑邪损伤元气而设立的方剂，或者预先服用以抵御暑邪，或者病愈后服用以巩固疗效，它们不是治疗暑病的正正方剂。
The method for preventing epidemics lies in restraining desires and avoiding overexertion, while not enduring hunger to prevent contracting the epidemic qi. ○ The Gallbladder is referred to as the "Official of Uprightness." When the Qi of the Gallbladder is robust, the Qi of the other eleven meridians relies on it to become robust as well, preventing pathogenic factors from entering. ○ *Yi Tong* states: For men, pathogenic factors enter through the mouth; for women, they enter through the anterior yin (genitals). During face-to-face sitting, one must be aware of the orientation (facing or turning away), or apply Realgar (Xionghuang) into the nostrils, calmly observe the position, and then enter.
Jin Dynasty physician Zhang Jiegou stated that contracting heat due to activity is called "Zhong Re" (Heat Stroke/Heat Exhaustion), while contracting it due to stillness is called "Zhong Shu" (Summerheat Stroke). Summerheat is Yin and Heat is Yang; thus, this naming convention is somewhat inaccurate. Generally, during the scorching summer days, human exposure to it generates summerheat disease, which is Zhong Re, invariably resulting from activity. Other scenarios include fearing heat and seeking coolness; if cool air invades the exterior, symptoms such as fever, aversion to cold, headache, and stiff neck arise, suitable for dispersal with Jiwei Qianghuo Tang (Nine-Ingredient Notopterygia Decoction). If coolness invades the interior, symptoms such as vomiting, diarrhea, and abdominal pain arise, suitable for warming with Lizhong Tang (Regulate the Middle Decoction). If accompanied by irritability, Dashun San (Great Smooth Powder) may be intermittently taken with cool water. Although the illness manifests during the summer months, it should not necessarily be named a summerheat disease. Broadly speaking, the diagnostic criteria for summerheat syndromes are thirst, mental restlessness, red urine, body heat, and a pulse that is flooding yet empty. Mild cases are termed "Shang Shu" (Injury by Summerheat); Liuyi San (Six-One Powder) is used to cleanse heat qi, excreting it via urination. If summerheat and dryness are closed and depressed without sweating, Xiangru Yin (Mosla Decoction) must be used to vent Yang Qi, penetrating from top to bottom, resolving the exterior and promoting diuresis simultaneously, leading to recovery. Severe cases are termed "Zhong Shu" (Struck by Summerheat), characterized by extreme thirst and profuse sweating, primarily treated with Baihu Jia Renshen Tang (White Tiger Plus Ginseng Decoction). If there is sweating followed by body heat but coldness in both feet, this indicates summerheat complicated by dampness, primarily treated with Baihu Jia Cangzhu Tang (White Tiger Plus Atractylodes Macrocephala Decoction). In cases of summerheat causing coma and unresponsiveness, or latent summerheat with food stagnation leading to vomiting and diarrhea, use Banxia (Pinellia Rhizome) 4 liang (boiled in vinegar), Fuling (Poria), and Gancao (Licorice Root) each 2 liang. Grind them into powder, form pills using fresh ginger juice, sized like mung beans. Take 50–60 pills per dose with warm water. If the patient is comatose and unresponsive, crush the pills and administer them directly, resulting in immediate revival. This is the divine prescription of Sun Simiao. (Named Xiaoshu Wan (Summer-heat Eliminating Pill), it is the premier divine prescription for summerheat syndromes.) As for Shengmai San (Generate the Pulse Powder) and Qingshu Yiqi Tang (Clear Summerheat and Boost Qi Decoction), these were established for summerheat damaging Yuan Qi (Primal Qi). They may be taken prophylactically to ward off summerheat or post-recovery to consolidate results; they are not primary formulas for treating acute summerheat disease.