精者，一身之至宝，原于先天而成于后天者也。（精者水也，天一生水，原于有生之初而成
于水谷之滋长。）五脏俱有而属于肾，静则藏，动则泄。静者水之德，动者火之用，火不
胜水，故在平人虽动而非与内接，则亦不至于泄也。若水极虚火极炎，则心有所感，
虽不交亦泄矣。夫必交乃泄者，亦必寐且梦交乃遗可知也。不必交亦泄者，亦不必
梦交与寐乃遗可知也。故有不寐之遗与寐而不梦之遗，寐而梦交之遗，宜分别论之。
梦交何也？曰∶相火客于阴器也，阴器为客火所动，动则举，举则欲交，故梦接内
也。使火不客于阴器，则但为他梦矣。然有有欲无欲之分焉，无欲念而梦交者，气
壹则动志也；有欲念而梦交者，志壹则动气也。气动志者，梦不必遗；志动气者，
梦无不遗。相火独肝肾乎？曰∶足三阴阳明之筋，与冲任督三脉之所会，诸筋皆结
聚于阴器，则诸经之火皆得客之矣，岂特肝肾为然哉？以肾主精、肝主泄，故
归重此二者耳，治者当审其所由致可也。有肾水虚而火炎者，滋阴降火为主。有肝
气郁滞而火盛者，散郁升阳为主。有脾胃湿热下流者，除湿清热升清为主。有用心
过度而火炽者，清心养血为主。有肺感外邪，或悲哀所伤而动火者，散邪清肺为主。
此皆易治。有久旷之人，盛满而溢者，更不用治。惟思慕色欲者为难，非斩断情根，
涤除妄念，虽药亦无济也。若乃不寐亦遗，（欲念一萌即泄。）与才寐不待梦交即遗，则精
滑之至也。或房事过多而滑，或梦遗日久而滑，或虚寒不固而滑，（气不摄精。）比之梦
遗为甚矣。然其治法亦无异也，锁精丸、固本丸、金樱丸、凤髓丹、固真散。用心
过度，心不摄肾者，远志丸，用交感汤加莲肉、五味子吞下，仍佐以灵砂丹。（见呕吐。）
思色不遂，精以离位，客于阴器，至卧而梦泄者，四七汤（见气）吞白丸子（见中风）。甚者耳
闻目见（闻见其所思者之声容也）其精即出，名曰白淫，妙香散（见赤白浊）吞玉华白丹。
色欲过度，
下元虚惫，泄滑不禁，鹿茸丸（见血）、山药丸（见腰痛）、大菟丝子丸（见咳嗽）、固
阳丸之类。（按
此等皆热剂，非虚寒勿轻用。）五倍涩精，敏于龙骨、牡蛎。交通心肾，菖蒲、远志、莲子等
不可少。古方多治郁滞，庸医误用涩剂。一少年遗浊，少腹有气冲上，（肝气逆也。）每
日腰热，（肾火郁也。）知其有郁，先用滚痰丸（见痰。）大下之，次用加减八物汤吞滋肾丸（见小
便不通）百粒。若稍用蛤粉等涩剂则遗浊更甚，遂改用导赤散，（见发热。）大剂煎服，遗浊
皆止。又一男子梦遗，与涩药更甚，因与神芎丸（见肿胀）大下之，却制猪苓丸，与服而
愈。脾胃湿热下流者，苍白二陈汤（见湿）加黄柏、升、柴。欲火大炽者，清心使火不妄起，
远志丸、茯神汤。一人劳心读书致此，卧时阴器但着被与腿即梦交而遗，悬空则不
梦。盖用心太过，血虚火炎，肾水亦竭，火客下焦，鼓其阴房，精不得藏，阴器着
物如得接然，故作淫梦而遗。上则补心安神；中则调其脾胃，升举阳气；下则益阴
固精，病随安。（此等当以六味、归脾、补中之属主之。）一人年六十患疟嗽，误治致湿热下盛，
脉数而有力，与补中益气（见气）加凉剂，续与黄柏丸，尺脉顿减。问之曰∶夜来梦交
否？曰∶然，幸不泄。曰∶年老精衰，固无可泄，然火之结于精房者，得药已散走
于阴器之窍，病可减矣。再服二日，又梦，其疟嗽全愈。亦有鬼魅相感者，其状不
欲见人，如有晤对，时独言笑，或时悲泣，如痴如呆是也，脉乍大乍小，乍有乍无，
左右互异，治以朱砂、雄黄、麝香、鬼箭、虎头骨之属。喻嘉言治祟方亦佳。（方见中
恶门论末。）以涩治脱不止，不如泻心，泻心不止，不如升阳，升阳最妙。肾气独沉
者宜升，脾湿下流者宜升，肝郁者宜升，不止一途也。思想气结成痰，迷于心窍，
猪苓丸之类利其痰。经络热而得者，作虚寒治则愈甚，清心丸。一人至夜脊心热梦
遗，用珍珠粉丸、猪苓丸，遗止。终服紫雪，（见篇末。）脊热始除。又有腰热遗精者，
用滚痰丸下之，又用导赤散（见发热）治其火，乃愈。知身有热而遗者，多为热遗也。
心神浮越，水火不交而滑泄者，镇固之，秘真丸、八仙丹之属。命门火衰，精脱，
玉关不闭者，急用八味丸或金锁正元丹。（遗证初起，未有不由火盛者，久则火衰气
虚而精滑矣。若
因过服凉剂而致寒者，脉多紧涩，寒郁火于下焦也，当先升提。若脉沉迟，是下元虚冷，
惟亟与温补，仍升提以挽
其下趋。）有一种肝经湿热，甚者茎中作痛，或挺纵不收，白物如精随溺而下，此筋疝
也，龙胆泻肝汤主之。（此为白浊之类。）
紫雪方∶黄金（百两）、石膏、寒水石、磁石、滑石，（各三斤，碎。）共享水一斛，煎至
四升，去滓，入犀角屑、羚羊角屑、青木香、沉香、（各五两。）玄参、升麻、（各一斤。）甘
草、（炒，八两。）丁香，（一两。）煮取一斗五升，去滓，入朴硝（精者十斤）、消石，（四升。如
无，芒硝亦可。每升重七两七钱半。）微火煎，柳木搅不住手，候煎至七升，投水盆中半
日，欲凝，入麝香、（当门子一两二钱半。）飞朱砂（三两。）搅匀，候冷成霜雪紫色，冷
水调服一二钱，小儿量减。能治烦热狂躁，兼解诸热药毒，及小儿惊痫等证。按咽
喉门有紫雪散与此大同小异，当参之。
精，是身体的至宝，源于先天禀赋，而成于后天水谷的滋养。（精属于水，天一生水，它起源于生命初始，而成长于饮食水谷的滋润。）五脏都有精，但归属于肾。静时则封藏，动时则外泄。静是水的美德，动是火的作用。如果火不能胜过水，那么在健康人中，即使有生理冲动，只要不与外界交接，也不会发生泄漏。如果肾水极度虚弱而心火极度亢盛，那么心中有所感触，即使没有性交行为也会泄漏。一定是通过性交才泄漏的，也一定是睡觉且做梦性交才会遗精，这是显而易见的。不一定需要性交也会泄漏的，也一定是不需要做梦性交或睡眠就会遗精，这也是显而易见的。所以有不睡觉就遗精的，有睡觉但不做梦就遗精的，有睡觉且做梦性交才遗精的，应当分别论述。
为什么会做梦性交？回答说：相火客居于阴器（生殖器）。阴器被客居的火所扰动，扰动就会勃起，勃起就会产生性交的欲望，所以梦中会有性交的行为。如果火不客居于阴器，那就只是做其他的梦罢了。然而这里又有有欲望和无欲望的区别。没有欲望念头而做梦性交的，是因为气专一而动摇了志；有欲望念头而做梦性交的，是因为志专一而动了气。气动志者，做梦不一定遗精；志动气者，做梦无不遗精。相火只存在于肝肾吗？回答说：足三阴、三阳经的筋，与冲脉、任脉、督脉这三条奇经交会，所有的筋都结聚在阴器，那么各经的火都能客居于此处，哪里仅仅是肝肾如此呢？因为肾主藏精、肝主疏泄，所以治疗时更重视这两脏，医生应当审察其致病原因即可。
如果是肾水虚而火炎盛的，以滋阴降火为主治。如果是肝气郁滞而火盛的，以疏散郁结、升发阳气为主治。如果是脾胃湿热下流的，以除湿清热、升举清气为主治。如果是用心过度而心火炽盛的，以清心养血为主治。如果是肺感受外邪，或因悲哀损伤而动火的，以散邪清肺为主治。这些都属于容易治疗的。如果是长期禁欲的人，精气盛满而溢出，更不需要治疗。只有那些思慕色欲的人最难治，如果不斩断情根，涤除妄念，即使用药也无济于事。
至于不睡觉也遗精的，（只要欲念一起就泄漏。）以及刚入睡还来不及做梦性交就遗精的，这是精滑到了极点。或者是房事过多导致滑精，或者是梦遗日久导致滑精，或者是虚寒不固导致滑精，（气不能摄持精液。）这比单纯的梦遗要严重得多。然而治疗方法也没有不同，可用锁精丸、固本丸、金樱丸、凤髓丹、固真散。如果是用心过度，心不能摄持肾的，用远志丸，配合交感汤加莲肉、五味子吞服，再辅以灵砂丹。（见呕吐章节。）如果是思慕美色而未遂，精离其位，客居于阴器，到睡觉时做梦泄漏的，用四七汤（见气病章节）吞服白丸子（见中风章节）。严重的，听到看到（听到看到所思慕者的声音容貌）精液就会流出，名叫“白淫”，用妙香散（见赤白浊章节）吞服玉华白丹。
如果是色欲过度，下元虚惫，泄滑不禁，可用鹿茸丸（见血证章节）、山药丸（见腰痛章节）、大菟丝子丸（见咳嗽章节）、固阳丸之类。（按：这些大多都是热性药方，如果不是虚寒证不要轻易使用。）五倍子涩精的效果，灵敏于龙骨、牡蛎。交通心肾，菖蒲、远志、莲子等药不可少。古方多治疗郁滞，庸医误用涩剂。有一个少年遗精浑浊，少腹有气向上冲逆，（这是肝气上逆。）每天腰部发热，（这是肾火郁结。）知道他体内有郁滞，先用滚痰丸（见痰证章节）大力攻下，接着用加减八物汤吞服滋肾丸（见小便不通章节）一百粒。如果稍微用蛤粉等涩剂，遗精浑浊会更严重，于是改用导赤散（见发热章节），大剂量煎服，遗精浑浊都停止了。又有一个男子梦遗，服用涩药后病情加重，因此给他神芎丸（见肿胀章节）大力攻下，然后制作猪苓丸，让他服用而痊愈。如果是脾胃湿热下流的，用苍白二陈汤（见湿证章节）加黄柏、升麻、柴胡。如果是欲火非常炽盛的，清心使火不妄起，用远志丸、茯神汤。
有一个人因劳心读书导致此病，睡觉时阴器只要接触被子和大腿就会做梦性交而遗精，悬空就不会做梦。这是因为用心太过，血虚火炎，肾水枯竭，火客居于下焦，鼓动阴部，精液无法封藏，阴器接触物体就像得到交接一样，所以做淫梦而遗精。上部补心安神；中部调理脾胃，升举阳气；下部益阴固精，病随之安定。（这类情况应当以六味地黄丸、归脾汤、补中益气汤之类的方剂为主。）有一个人六十岁患疟疾咳嗽，误治导致湿热下盛，脉数而有力，给予补中益气汤（见气病章节）加凉药，随后给予黄柏丸，尺脉顿时减弱。问他道：“昨晚做梦性交了吗？”回答说：“是的，幸好没有射精。”说：“年老精气衰败，本来就没有什么可泄的，但是火结聚在精室，得到药物后已经散走于阴器的窍道，病情可以减轻了。”再服用两天，又做梦，但他的疟疾和咳嗽完全好了。也有被鬼魅感应导致的，症状是不想见人，好像面对面交谈，有时独自说笑，有时悲伤哭泣，像痴呆一样，脉象忽大忽小，忽有忽无，左右手脉象不同，治疗用朱砂、雄黄、麝香、鬼箭羽、虎头骨之类的药物。喻嘉言治疗祟病的方剂也很好。（方剂见中恶门论末。）用涩法治疗脱证不止，不如泻心法；泻心法不止，不如升阳法，升阳法最为巧妙。肾气独沉的宜升，脾湿下流的宜升，肝郁的宜升，不止这一种途径。思想气结成痰，迷于心窍，用猪苓丸之类利其痰。经络热导致的，当作虚寒治则病情加重，用清心丸。有一个人到了晚上脊背中心发热并梦遗，用珍珠粉丸、猪苓丸，遗精停止。最终服用紫雪，（见篇末。）脊背发热才消除。又有腰热遗精的，用滚痰丸攻下，又用导赤散（见发热章节）治疗其火，才痊愈。知道身体有热而遗精的，多为热证遗精。
心神浮越，水火不交而滑泄的，用镇固的方法，秘真丸、八仙丹之类。命门火衰，精脱，玉关不闭的，急用八味丸或金锁正元丹。（遗精证初起，没有不是由火盛引起的，久了则火衰气虚而精滑了。如果因为过服凉药而导致寒证的，脉多紧涩，这是寒郁火于下焦，应当先升提。如果脉沉迟，是下元虚冷，只需紧急温补，仍配合升提以挽回下趋之势。）有一种肝经湿热，严重的阴茎疼痛，或者挺纵不收，白色分泌物像精液一样随尿液而下，这叫筋疝，用龙胆泻肝汤主治。（这属于白浊的一类。）
紫雪方：黄金（百两）、石膏、寒水石、磁石、滑石，（各三斤，捣碎。）共用一斛水，煎至四升，去渣，加入犀角屑、羚羊角屑、青木香、沉香，（各五两。）玄参、升麻，（各一斤。）甘草，（炒，八两。）丁香，（一两。）煮取一斗五升，去渣，加入朴硝（精选者十斤）、消石，（四升。如果没有，芒硝也可以。每升重七两七钱半。）微火煎，用柳木棍不停搅拌，等到煎至七升，投入水盆中半天，快要凝固时，加入麝香，（当门子一两二钱半。）飞朱砂（三两。）搅拌均匀，等到冷却成霜雪紫色，冷水调服一二钱，小儿减量。能治疗烦热狂躁，兼解各种热药毒，以及小儿惊痫等证。按：咽喉门有紫雪散与此大同小异，应当参考。
Jing (Essence) is the supreme treasure of the body, originating from congenital endowment and formed through postnatal nourishment. (Jing belongs to Water; Heaven generates One Water, originating at the beginning of life and growing through the nourishment of food and water.) Jing resides in all five Zang organs but is governed by the Kidney. In a state of stillness, it is stored; in a state of movement, it is discharged. Stillness is the virtue of Water, while movement is the function of Fire. If Fire does not overcome Water, then in a healthy person, even with physiological arousal, as long as there is no external sexual intercourse, leakage will not occur. However, if Kidney Water is extremely deficient and Heart Fire is extremely blazing, then upon mental stimulation, leakage may occur even without sexual intercourse. It is evident that leakage occurring only through intercourse must also require sleep and dreams of sexual union to result in seminal emission. Conversely, leakage occurring without intercourse implies that it happens without dreams or sleep. Therefore, emissions occurring without sleep, those occurring during sleep without dreams, and those occurring during sleep with dreams of sexual union should be discussed separately.
Why do dreams of sexual union occur? The answer is: Ministerial Fire (Xiang Huo) lodges in the Yin organ (genitals). When the Yin organ is disturbed by this lodging fire, it becomes aroused and erect, leading to a desire for intercourse, thus resulting in sexual acts within dreams. If Fire does not lodge in the Yin organ, other types of dreams would occur. However, there is a distinction between dreams with and without sexual desire. Dreams of sexual union without conscious desire arise because Qi agitation moves the Will (Zhi); dreams with conscious desire arise because Will agitation moves Qi. When Qi moves Will, dreaming does not necessarily lead to emission; when Will moves Qi, dreaming invariably leads to emission. Does Ministerial Fire exist only in the Liver and Kidney? The answer is no: The tendons of the three Yin and three Yang meridities of the foot converge with the Chong, Ren, and Du vessels, and all tendons cluster around the genitals. Therefore, Fire from various meridians can lodge there, not just those of the Liver and Kidney. Since the Kidney governs storing Essence and the Liver governs discharge, treatment focuses heavily on these two organs, and physicians should carefully examine the cause.
For cases where Kidney Water is deficient and Fire blazes, the primary treatment is Nourishing Yin and Descending Fire. For cases where Liver Qi is stagnant and Fire is abundant, the primary treatment is Dispersing Stagnation and Raising Yang. For cases where Damp-Heat from the Spleen and Stomach flows downward, the primary treatment is Draining Dampness, Clearing Heat, and Raising Clear Qi. For cases where excessive mental effort causes Heart Fire to blaze, the primary treatment is Clearing the Heart and Nourishing Blood. For cases where the Lung is affected by external pathogens or sorrow-induced Fire, the primary treatment is Dispersing Pathogens and Clearing the Lung. These are relatively easy to treat. For individuals who have abstained from sex for a long time, causing Essence to become full and overflow, no treatment is needed. The most difficult cases involve those obsessed with sexual desires; unless they sever emotional roots and cleanse delusional thoughts, medication will be ineffective.
Emissions occurring without sleep (leakage begins as soon as desire arises) and emissions occurring immediately upon falling asleep without waiting for dreams represent severe essence slipping. This may result from excessive sexual activity, chronic seminal emission, or deficiency-cold failing to secure Essence (Qi failing to hold Essence), which is more severe than simple dream emission. However, the treatment methods are similar, utilizing Suojing Wan (Locking Essence Pill), Guben Wan (Root-Securing Pill), Jinying Wan (Cherokee Rose Pill), Fengsui Dan (Phoenix Marrow Elixir), or Guzhen San (Securing True Powder). For cases of excessive mental effort where the Heart fails to control the Kidney, use Yuanzhi Wan (Polygala Pill), taken with Jiaogan Tang (Interacting Decoction) augmented with Lotus Seed and Schisandra Berry, assisted by Lingsha Dan (Cinnabar Elixir). (See Vomiting section.) For cases of unfulfilled sexual longing where Essence leaves its proper position and lodges in the genitals, causing emission during dreams, use Siqi Tang (Four Seven Decoction) (see Qi section) taken with Baiwan Zi (White Pill) (see Stroke section). In severe cases where hearing or seeing objects of desire causes immediate emission, known as "White Impurity" (Bai Yin), use Miaoxiang San (Wonderful Fragrance Powder) (see Red and White Turbidity section) taken with Yuhua Bai Dan (Jade Flower White Elixir).
For cases of excessive sexual indulgence leading to deficiency and exhaustion of the Lower Origin, with uncontrollable slippery emissions, use Lurong Wan (Deer Antler Pill) (see Blood section), Shanyao Wan (Dioscorea Pill) (see Lower Back Pain section), Datuzisi Wan (Large Cuscuta Pill) (see Cough section), or Guyang Wan (Consolidating Yang Pill). (Note: These are mostly hot-natured formulas; do not use lightly unless there is deficiency-cold.) Wuweizi (Myrica Waxberry) secures Essence more effectively than Longgu (Dragon Bone) and Muli (Oyster Shell). To facilitate communication between Heart and Kidney, Shichangpu (Acorus), Yuanzhi (Polygala), and Lianzi (Lotus Seed) are indispensable. Ancient formulas often treated stagnation, but quack doctors mistakenly used astringents. A young man suffered from turbid emissions with Qi rushing upward from the lower abdomen (Liver Qi rebellion) and daily heat in the lower back (Kidney Fire stagnation). Recognizing internal stagnation, he was first given Untan Wan (Rolling Phlegm Pill) for strong purgation, followed by Jiaban Bawu Tang (Modified Eight Substance Decoction) taken with Zishen Wan (Nourishing Kidney Pill) 100 pills. Had astringents like Ge Fen (Clam Powder) been used initially, emissions would have worsened. Instead, Daochi San (Guiding Heat Outward Powder) was prescribed in large doses, stopping the emissions. Another male patient had worsening dream emissions after taking astringents; he was given Shenxiong Wan (Spiritual Xiong Pill) for strong purgation, then cured with Zhuling Wan (Polyporus Pill). For Spleen-Stomach Damp-Heat flowing downward, Cangbai Erchen Tang (Atractylodes and Pinellia Two-Chen Decoction) (see Dampness section) with Huangbo (Phellodendron), Shengma (Cimicifuga), and Chaihu (Bupleurum) is used. For intense sexual fire, clearing the Heart prevents erratic Fire; use Yuanzhi Wan or Fushen Tang (Poria Spirit Decoction).
One case involved a scholar whose excessive mental labor caused his genitals to emit semen during dreams whenever they touched bedding or legs, but not when suspended. This was due to excessive mental effort causing Blood deficiency and Fire blazing, exhausting Kidney Water, with Fire lodging in the Lower Jiao, agitating the genital chamber so Essence could not be stored. Contact with objects simulated intercourse, triggering淫梦 (lustful dreams). Treatment involved tonifying the Heart and calming the Spirit above, regulating the Spleen and Stomach and raising Yang in the middle, and benefiting Yin and securing Essence below. (Such cases should primarily use Liuwei Dihuang Wan, Guipi Tang, or Buzhong Yiqi Tang.) A sixty-year-old patient with malaria and cough was mistreated, leading to excessive Damp-Heat below and a rapid, forceful pulse. He was given Buzhong Yiqi Tang (see Qi section) with cooling agents, followed by Huangbo Wan. The Chi pulse weakened significantly. Upon asking if he had dreamed of sex, he replied yes, but did not ejaculate. The physician noted that although old age implies depleted Essence, the Fire lodged in the Essence Chamber had dispersed into the genital orifices due to the medicine, reducing pathology. After two more days, another dream occurred, but the malaria and cough were fully resolved. There are also cases influenced by demonic entities, characterized by aversion to people, talking to oneself, laughing or crying inexplicably, resembling dementia, with irregular pulses. Treatment uses Zhusha (Cinnabar), Xionghuang (Realgar), Shexiang (Musk), Guijianyu (Arrowwood Twig), and Hutou Gu (Tiger Skull Bone). Yu Jiayan’s formula for treating such afflictions is also excellent. (See Middle Evil section.) If astringents fail to stop collapse, draining the Heart is better; if draining the Heart fails, raising Yang is best. Raising Yang is suitable for sinking Kidney Qi, downward-flowing Spleen Dampness, and Liver stagnation. Phlegm formed by emotional Qi stagnation confusing the Heart orifice requires Zhuling Wan to drain phlegm. Heat in the meridians mistaken for deficiency-cold worsens the condition; use Qingxin Wan (Clear Heart Pill). A patient with night-time spinal heat and dream emissions was cured of emissions using Zhenzhu Fen Wan (Pearl Powder Pill) and Zhuling Wan, with final resolution of spinal heat after taking Zixue (Purple Snow). Another patient with lower back heat and emissions was treated with Untan Wan for purgation and Daochi San to clear Fire. Emissions accompanied by body heat are usually due to Heat.
For floating Heart Spirit and failure of Water-Fire interaction causing slippery emissions, sedation and consolidation are needed, using Mizhen Wan (Secret True Pill) or Baxian Dan (Eight Immortals Elixir). For Mingmen Fire decline, Essence depletion, and inability to close the Jade Gate, urgently use Bawei Wan (Eight Ingredient Pill) or Jin suo Zhengyuan Dan (Golden Lock Correcting Origin Elixir). (Initial seminal emission is rarely not due to excess Fire; prolonged cases lead to Fire decline, Qi deficiency, and slippery Essence. If cold results from overuse of cooling medicines, the pulse is typically tight and choppy, indicating Cold trapping Fire in the Lower Jiao; raise Yang first. If the pulse is deep and slow, it indicates Lower Origin deficiency-cold; urgently warm and tonify, combined with raising Yang to reverse downward flow.) A type of Liver Meridian Damp-Heat causes penile pain or protrusion that does not retract, with white fluid resembling Essence discharging with urine, known as Sin Hernia (Jin Shan), treated with Longdan Xiegan Tang (Gentian Liver-Draining Decoction). (This belongs to the category of White Turbidity.)
Formula for Zixue (Purple Snow): Gold (100 liang), Shi Gao (Gypsum), Han Shui Shi (Calcitum), Ci Shi (Magnetite), Hua Shi (Talcum) (each 3 jin, crushed). Boil in 1 hu (10 dou) of water until reduced to 4 sheng. Strain, add Xi Jiao Xiao (Rhinoceros Horn shaving - substitute with Buffalo Horn), Ling Yang Jiao Xiao (Antelope Horn shaving), Qing Mu Xiang (Aquilaria), Chen Xiang (Agarwood) (each 5 liang), Xuan Shen (Scrophularia), Sheng Ma (Cimicifuga) (each 1 jin), Gan Cao (Licorice) (roasted, 8 liang), Ding Xiang (Clove) (1 liang). Boil to 1.5 dou. Strain, add Po Xiao (Mirabilite, refined 10 jin), Xiao Shi (Niter, 4 sheng; if unavailable, Mang Xiao/Mirabilite works; each sheng weighs 7 liang 7 qian 5 fen). Simmer gently, stirring constantly with a willow stick until reduced to 7 sheng. Pour into a basin of water for half a day. As it begins to solidify, add She Xiang (Musk, 1 liang 2 qian 5 fen) and Fei Zhu Sha (Fly Cinnabar, 3 liang). Stir evenly until cooled to a purple snow-like consistency. Take 1-2 qian mixed with cold water; reduce dose for children. Treats irritability, fever, mania, resolves toxicity of various heat-clearing medicines, and pediatric convulsions. Note: Zixue San in the Throat section is similar; consult both.