雷公真君曰∶热病发狂，如见鬼状者，死症也。与热病不知人，正复相同，然而热症同而死症异
也。发狂如见鬼状者，实热也；热病不知人者，虚热也。实热宜泻火，虚热宜清火。热极而至发狂，大约
阳明之火居多，火热燔烧，自己之心亦焚，心中自焚，则心之神外越而见鬼矣。非如见鬼也，而实实见鬼
耳。人至见鬼，与死为邻矣，将用何药以救之乎？方用火齐汤∶石膏一两，元参三两，人参二两，知母一
钱，黄连三钱，茯神一两，白芥子三钱，水煎服。此方石膏以降胃火，元参以降浮游之火，知母以降肾
火，黄连以降心
火，茯神以清心，引诸火从小便而泄出，白芥子以消痰，则神清而心定，然非多加人参，则胃气
消亡，又安能使诸药之降火哉，此方之所以妙而神也。一剂而狂止，再剂而不见鬼矣，三剂而火全退
也，热病不知人者，虽亦阳明之火，然非尽阳明之火也。乃肝气郁闷，木中之火不得泄，于是木
克胃，而胃火亦旺，热气熏蒸，心中烦乱，故不知人。然神尚守于心中，而不至于外越也。方用开知
汤∶白芍一两，当归一两，甘草三钱，石膏一两，柴胡一钱，炒栀子五钱，白芥子三钱，菖蒲三钱，
麦冬一两，水煎服。此方用归、芍以滋肝，用柴胡以开郁，用石膏、栀子平胃肝之火，用白芥子、麦冬
消痰清肺，用菖蒲启心中之迷，自然热去而心安，又何至闷乱不知人哉。故一剂顿解，二剂全愈也。
人有火盛之极，舌如芒刺，唇口开裂，大渴呼饮，虽非伤寒之症所得，而人患此病，即不身热，亦
去死不久也。白虎汤亦可救，但过于太凉，恐伤胃气，往往有热退而生变，仍归于亡，故白虎汤不可轻
投也。我有一方，名曰清凉散。元参二两，麦冬一两，甘菊花五钱，青蒿五钱，白芥子三钱，生地三
钱，车前子三钱，水煎服。此方妙在元参为君，以解上焦之焰∶麦冬为臣，以解肺中之热∶甘菊、青蒿
为佐，以消胃中之火；尤妙车前子、白芥、生地为使，或化痰，或凉血，尽从膀胱以下泻其大热之
气。是上下之间，无非清凉，而火热自散，又不损胃，故能扶危而不至生变也。
产妇产半月，忽然大汗如雨，口渴舌干，发热而躁，有似伤寒症者，死症也。若作伤寒治之，无
不死矣。此乃内水干枯，无血以养心阳，气无阴不化，乃发汗亡阳而身热耳。故口虽渴而不欲饮水，
舌虽干而苔又滑甚，心躁而不至发狂，此所以异于伤寒之外症也。此时急用人参二两，当归二两、
黄二两，桑叶三十片，北五味一钱，麦冬五钱，水煎服。方名收汗丹。参、归、黄 大补其气
血，麦冬、五味清中有涩，佐桑叶止汗，实有神功。盖此等虚汗，非补不止，而非涩亦不收也。故一剂
而汗止，二剂而汗收，起死回生，非此方之谓乎。
雷公真君说：热病（由外感热邪引起的疾病）出现发狂、好像看见鬼怪症状的，是死症。这与热病导致神志昏迷的情况，表面上看相同，但实际上热症的性质相同而预后的死症原因不同。发狂如见鬼状的，属于实热证；热病神志昏迷的，属于虚热证。实热证应当采用泻火法治疗，虚热证应当采用清火法治疗。热邪极盛而导致发狂，大多是阳明经的火气居多，火热之气燔烧体内，连自己的心也被焚烧，心中自焚，那么心的神明就会向外浮越从而产生见鬼的幻觉。这并不是真的看见了鬼，而是确实出现了见鬼的症状。人到了见鬼的地步，就已经与死亡为邻了，该用什么药来救治呢？方剂用火齐汤：石膏一两，元参三两，人参二两，知母一钱，黄连三钱，茯神一两，白芥子三钱，用水煎服。这个方子中，石膏用来降胃火，元参用来降浮游之火，知母用来降肾火，黄连用来降心火，茯神用来清心安神，引导诸火从小便排出，白芥子用来消除痰浊，这样心神清明而心定。然而如果不多加用人参，胃气就会消亡，又怎么能使诸药发挥降火的作用呢？这就是此方精妙神奇之处。服用一剂后狂躁停止，再服用一剂后不再见鬼，三剂后火气完全消退。
热病导致神志昏迷的，虽然也是阳明经的火气，但并非完全是阳明经的火气。这是由于肝气郁闷，木中之火不得宣泄，于是木克土（肝木克制脾胃），导致胃火也旺盛，热气熏蒸，心中烦乱，所以神志昏迷。然而神明尚且守持在心中，不至于向外浮越。方剂用开知汤：白芍一两，当归一两，甘草三钱，石膏一两，柴胡一钱，炒栀子五钱，白芥子三钱，菖蒲三钱，麦冬一两，用水煎服。这个方子用当归、白芍来滋养肝脏，用柴胡来疏解郁结，用石膏、栀子平抑胃和肝的火气，用白芥子、麦冬消除痰浊并清肺热，用菖蒲开启心中的迷蒙，自然热去而心安，怎么会至于烦乱神志昏迷呢？所以服用一剂顿然缓解，二剂完全痊愈。
有人火气盛到极点，舌头像有芒刺一样，嘴唇口角开裂，极度口渴呼叫饮水，这虽然不是伤寒（感受寒邪引起的疾病）的症状，但人患上这种病，即使身体不发热，也离死不远了。白虎汤也可以救治，但过于寒凉，恐怕损伤胃气，往往有热退之后产生变证，最终仍归于死亡，所以白虎汤不可轻易使用。我有一方，名叫清凉散：元参二两，麦冬一两，甘菊花五钱，青蒿五钱，白芥子三钱，生地三钱，车前子三钱，用水煎服。这个方子的妙处在于以元参为君药，解除上焦的火焰；麦冬为臣药，解除肺中的热邪；甘菊、青蒿为佐药，消除胃中的火气；尤其妙在用车前子、白芥子、生地为使药，或者化痰，或者凉血，让大热之气全部从膀胱以下泻出。这样上下之间无非清凉，而火热自然消散，又不损伤胃气，所以能扶持危局而不致产生变证。
产妇生产半个月后，忽然大汗如雨，口渴舌干，发热而烦躁，看起来像伤寒症，这是死症。如果当作伤寒来治疗，没有不死的。这是因为体内阴水干枯，无血以养心阳，气无阴则无法化生，这是发汗导致亡阳而身体发热。所以口虽渴但不想喝水，舌虽干但舌苔又很滑腻，心中烦躁但不至于发狂，这就是它与伤寒外在症状不同的地方。此时紧急用人参二两，当归二两，黄芪二两，桑叶三十片，北五味子一钱，麦冬五钱，用水煎服。方名收汗丹。人参、当归、黄芪大补气血，麦冬、五味子在清热中带有收敛之性，配合桑叶止汗，实在有神奇的功效。大概这种虚汗，不补气是无法停止的，不用收敛药物也无法固摄。所以服用一剂汗就停止，二剂汗液收回，起死回生，说的就是此方啊。
Lei Gong Zhen Jun said: In Re Bing (Disease of Heat), if mania occurs with symptoms resembling seeing ghosts, it is a fatal syndrome. This appears identical to Re Bing causing loss of consciousness; however, while the nature of the heat syndrome is the same, the reasons for fatality differ. Mania resembling seeing ghosts indicates Shi Re (Excess Heat); loss of consciousness in Re Bing indicates Xu Re (Deficiency Heat). Shi Re should be treated by purging fire, while Xu Re should be treated by clearing fire. When heat reaches its extreme and causes mania, it is mostly due to Fire of the Yangming channel. The scorching fire burns within, even incinerating one's own heart. When the heart is internally incinerated, the Shen (Spirit) of the heart floats outward, resulting in hallucinations of seeing ghosts. It is not that ghosts are truly seen, but rather that the symptom of seeing ghosts is genuinely present. When a person reaches the state of seeing ghosts, they are on the verge of death. What medicine should be used to save them? The formula Huo Qi Tang is prescribed: Shigao (Gypsum Fibrosum) 1 liang, Yuanshen (Scrophulariae Radix) 3 liang, Renshen (Ginseng Radix et Rhizoma) 2 liang, Zhimu (Anemarrhenae Rhizoma) 1 qian, Huanglian (Coptidis Rhizoma) 3 qian, Fushen (Poria with Hostwood) 1 liang, Baijiezi (Sinapis Semen) 3 qian. Decoct in water and take orally. In this formula, Shigao descends Stomach Fire, Yuanshen descends floating fire, Zhimu descends Kidney Fire, Huanglian descends Heart Fire, Fushen clears the Heart and guides the various fires out through urination, and Baijiezi eliminates phlegm. Thus, the Shen becomes clear and the Heart settles. However, without adding sufficient Renshen, the Wei Qi (Stomach Qi) would perish, and how could the other herbs then descend the fire? This is the subtlety and efficacy of this formula. After one dose, the mania stops; after two doses, the hallucinations cease; after three doses, the fire is completely extinguished.
Regarding Re Bing causing loss of consciousness, although it also involves Yangming Fire, it is not entirely Yangming Fire. It arises from Liver Qi stagnation, where the Fire within the Wood cannot vent. Consequently, Wood overacts on Earth (Liver overacting on Spleen/Stomach), causing Stomach Fire to flourish. The steaming heat causes mental restlessness, leading to loss of consciousness. However, the Shen remains anchored in the Heart and does not float outward. The formula Kai Zhi Tang is prescribed: Baishao (Paeoniae Radix Alba) 1 liang, Danggui (Angelicae Sinensis Radix) 1 liang, Gancao (Glycyrrhizae Radix et Rhizoma) 3 qian, Shigao (Gypsum Fibrosum) 1 liang, Chaihu (Bupleuri Radix) 1 qian, Chao Zhizi (Gardeniae Fructus Praeparatus) 5 qian, Baijiezi (Sinapis Semen) 3 qian, Changpu (Acori Tatarinowii Rhizoma) 3 qian, Maidong (Ophiopogonis Radix) 1 liang. Decoct in water and take orally. This formula uses Danggui and Baishao to nourish the Liver, Chaihu to resolve stagnation, Shigao and Zhizi to calm the Fire of the Stomach and Liver, Baijiezi and Maidong to eliminate phlegm and clear Lung heat, and Changpu to open the confusion in the Heart. Naturally, the heat dissipates and the Heart calms, preventing restlessness and loss of consciousness. Thus, one dose brings immediate relief, and two doses result in complete recovery.
There are cases where Fire is extremely excessive, causing the tongue to feel like thorns, lips and mouth to crack, and intense thirst with calls for drinking. Although this is not a symptom of Shang Han (Cold Damage Disease), contracting this illness means that even without fever, death is imminent. Baihu Tang can also be used for rescue, but it is too cold and may damage Wei Qi (Stomach Qi). Often, after the heat subsides, complications arise, ultimately leading to death; therefore, Baihu Tang should not be administered lightly. I have a formula named Qing Liang San: Yuanshen (Scrophulariae Radix) 2 liang, Maidong (Ophiopogonis Radix) 1 liang, Ganjuhua (Chrysanthemi Flos) 5 qian, Qinghao (Artemisiae Annuae Herba) 5 qian, Baijiezi (Sinapis Semen) 3 qian, Shengdi (Rehmanniae Radix) 3 qian, Cheqianzi (Plantaginis Semen) 3 qian. Decoct in water and take orally. The brilliance of this formula lies in using Yuanshen as the Sovereign herb to quell the flames of the Upper Jiao; Maidong as the Minister herb to clear heat in the Lungs; Ganjuhua and Qinghao as the Assistant herbs to eliminate Fire in the Stomach; and especially Cheqianzi, Baijiezi, and Shengdi as the Envoy herbs, which either transform phlegm or cool the blood, allowing the excessive heat to drain downward from the Bladder. Thus, the entire body is cooled, the fire naturally disperses, the Stomach is not damaged, and it can support critical conditions without causing complications.
A postpartum woman, half a month after delivery, suddenly experiences profuse sweating like rain, dry mouth and tongue, fever, and irritability, resembling Shang Han symptoms. This is a fatal syndrome. If treated as Shang Han, death is inevitable. This is due to the exhaustion of internal Yin fluids, leaving no Blood to nourish Heart Yang. Qi cannot transform without Yin. This is sweating leading to Yang collapse and subsequent body heat. Therefore, although there is thirst, there is no desire to drink; although the tongue is dry, the coating is slippery. There is mental irritability but not mania. These are the differences from the external symptoms of Shang Han. At this time, urgently prescribe Renshen (Ginseng Radix et Rhizoma) 2 liang, Danggui (Angelicae Sinensis Radix) 2 liang, Huangqi (Astragali Radix) 2 liang, Sangye (Mori Folium) 30 leaves, Bei Wuweizi (Schisandrae Chinensis Fructus) 1 qian, Maidong (Ophiopogonis Radix) 5 qian. Decoct in water and take orally. The formula is named Shou Han Dan. Renshen, Danggui, and Huangqi greatly tonify Qi and Blood; Maidong and Wuweizi have astringent properties amidst their cooling nature, assisting Sangye to stop sweating, achieving miraculous results. Generally, such deficiency sweating cannot stop without tonification, nor can it consolidate without astringents. Thus, one dose stops the sweating, two doses consolidate it, bringing the dying back to life. This refers precisely to this formula.