问曰∶病有霍乱者何？答曰∶呕吐而利，名曰霍乱。（赵本作“此名霍乱”）
三焦者，水谷之道路。邪在上焦，则吐而不利；邪在下焦，则利而不吐；邪在中焦，则既吐且利。以饮
食不节，寒热不调，清浊相干，阴阳乖隔，遂成霍乱。轻者，止曰吐利；重者，挥霍扰乱，名曰霍乱。
问曰∶病发热，头痛，身疼，恶寒，吐利者，此属何病？答曰∶此名霍乱。（赵本有“霍乱”二字）
自吐下，又利止，复更发热也。
发热，头痛，身疼，恶寒者，本是伤寒，因邪入里，伤于脾胃，上吐下利，令为霍乱。利止里和，复
更发热者，还是伤寒，必汗出而解。
伤寒，其脉微涩者，本是霍乱，今是伤寒，却四五日，至阴经上，转入阴必利，本呕下利者，不可治也。
欲似大便而反失气，仍不利者，（赵本有“此”字）属阳明也，便必硬，十三日愈，所以然者，经尽故也。
微为亡阳，涩为亡血。伤寒脉微涩，则本是霍乱，吐利亡阳、亡血，吐利止，伤寒之邪未已，还是伤寒，
却四五日邪传阴经之时，里虚遇邪，必作自利，本呕者，邪甚于上，又利者，邪甚于下，先霍乱里气大虚，又
伤寒之邪，再传为吐利，是重虚也，故为不治。若欲似大便，而反失气仍不利者，利为虚，不利为
实，欲大便而反失气，里气热也，此属阳明，便必硬也。十三日愈者，伤寒六日，传遍三阴三阳，后六日再传
经尽，则阴阳之气和，大邪之气去而愈也。
下利后，当便硬，硬则能食者愈；今反不能食，到后经中，颇能食，复过一经能食，过之一日，当愈。不
愈者，不属阳明也。
下利后，亡津液，当便硬。能食为胃和，必自愈；不能食者，为未和。到后经中，为复过一经，言七日
后再经也。颇能食者，胃气方和，过一日当愈。不愈者，暴热使之能食，非阳明气和也。
恶寒脉微，而复利，利止，亡血也，四逆加人参汤主之。（赵本有“四逆加人参汤方”详见卷十）
恶寒脉微而利者，阳虚阴胜也，利止则津液内竭，故云亡血。《金匮玉函》曰∶水竭则无血，与四
逆汤温经助阳，加人参生津液益血。
霍乱，头痛，发热，身疼痛，热多欲饮水者，五苓散主之；寒多不用水者，理中丸主之。（赵本有“五
芩散方”详见卷三）
头痛发热，则邪自风寒而来。中焦为寒热相半之分，邪稍高者，居阳分，则为热，热多欲饮水者，
与五苓散以散之；邪稍下者，居阴分，则为寒，寒多不用水者，与理中丸温之。
理中丸方∶
人参（甘温） 甘草（炙。甘平） 白术（甘温） 干姜（以上。赵本无此二字。各三两。辛热）
《内经》曰∶脾欲缓，急食甘以缓之。用甘补之，人参、白术、甘草之甘，以缓脾气调中。寒淫所胜，
平以辛热。干姜之
辛，以温胃散寒。
上四味，捣筛为末，蜜和丸，如鸡黄大，（赵本作“捣筛，蜜和为丸，如鸡子黄许大”）以沸汤数合，
和一丸，研碎，温服之。日三四，夜二服，腹中未热，益至三四丸，然不及汤。汤法，以四物根据两数切，用
水八升，煮取三升，去滓，温服一升，日三服。
加减法∶（赵本无此三字）
若脐上筑者，肾气动也，去术加桂四两。
脾虚肾气动者，脐上筑动。《内经》曰∶甘者，令人中满。术甘壅补，桂泄奔豚，是相易也。
吐多者，去术，加生姜三两。
呕家不喜甘，故去术；呕家多服生姜，以辛散之。
下多者，还用术；悸者，加茯苓二两。
下多者，用术以去湿；悸加茯苓以导气。
渴欲得水者，加术，足前成四两半。
津液不足则渴，术甘以缓之。
腹中痛者，加人参，足前成四两半。
里虚则痛，加人参以补之。
寒者，加干姜，足前成四两半。
寒淫所胜，平以辛热。
腹满者，去术，加附子一枚。服汤后，如食顷，饮热粥一升许，微自温，勿发揭衣被。
胃虚则气壅腹满，甘令人中满，是去术也；附子之辛，以补阳散壅。
吐利止而身痛不休者，当消息和解其外，宜桂枝汤小和之。（赵本有“桂枝汤方”详见卷二）
吐利止，里和也；身痛不休，表未解也。与桂枝汤小和之。《外台》云∶里和表病，汗之则愈。
吐利汗出，发热恶寒，四肢拘急，手足厥冷者，四逆汤主之。（赵本有“四逆汤方”详见卷二）
上吐下利，里虚汗出，发热恶寒，表未解也；四肢拘急，手足厥冷，阳虚阴胜也。与四逆汤助阳退阴。
既吐且利，小便复利而大汗出，下利清谷，内寒外热，脉微欲绝者，四逆汤主之。
吐利亡津液，则小盒饭少，小便复利而大汗出，津液不禁，阳气大虚也。脉微为亡阳，若无外热，但
内寒，下利清谷，为纯阴；此以外热，为阳未绝，犹可与四逆汤救之。
吐已下断，汗出而厥，四肢拘急不解，脉微欲绝者，通脉四逆加猪胆汁（赵本无“汁”字）汤主之。（
赵本有“通脉四逆加猪胆汤方”详见卷十）
吐已下断，津液内竭，则不当汗出，汗出者，不当厥；今汗出而厥，四肢拘急不解，脉微欲绝者，阳气大
虚，阴气独胜也。若纯与阳药，恐阴为格拒，或呕或躁，不得复入也；与通脉四逆汤加猪胆汁，胆苦
入心而通脉，胆寒补肝而和阴，引置阳药不被格拒。《内经》曰∶微者逆之，甚者从之。此之谓也。
吐利发汗，脉平，小烦者，以新虚不胜谷气故也。
《内经》曰∶食入于阴，长气于阳。新虚不胜谷气，是生小烦。
问：什么是霍乱病？答：呕吐并伴有腹泻，称为霍乱。（赵本写作“此名霍乱”）
三焦是水谷运行的通道。邪气在上焦，则只呕吐而不腹泻；邪气在下焦，则只腹泻而不呕吐；邪气在中焦，则既呕吐又腹泻。由于饮食不节制，寒热失调，清气与浊气相互干扰，阴阳之气乖违阻隔，于是形成霍乱。轻的，仅称为吐利；重的，挥霍撩乱，称为霍乱。
问：患病出现发热、头痛、身体疼痛、恶寒，同时又有呕吐和腹泻，这属于什么病？答：这称为霍乱。（赵本中有“霍乱”二字）
发热、头痛、身体疼痛、恶寒，原本是属于伤寒（外感风寒所致的疾病），因为邪气入里，损伤了脾胃，导致上吐下泻，从而变成霍乱。如果腹泻停止，说明里气调和，但又再次发热，这仍然是伤寒，必定通过出汗而痊愈。
患伤寒，脉象微而涩的，原本是霍乱，现在转为伤寒。过了四五天，邪气传入阴经，转入阴经必然导致腹泻。原本就有呕吐和腹泻的，属于难治之证。
想要大便却反而排气，仍然没有腹泻的，属于阳明病，大便必定干硬，十三天会痊愈。之所以这样，是因为经气运行完毕的缘故。
脉微表示阳气耗损，脉涩表示阴血耗损。伤寒脉象微涩，说明原本是霍乱，因呕吐和腹泻导致阳气、阴血耗损。呕吐和腹泻停止后，伤寒的邪气并未消除，还是伤寒。到了四五天邪气传入阴经的时候，里虚遇到邪气，必然发生自发性腹泻。原本呕吐的，是邪气偏盛于上部；又腹泻的，是邪气偏盛于下部。先患霍乱导致里气大虚，再加上伤寒邪气再次传入引起吐利，这是双重虚弱，所以属于不治之症。如果想要大便，却反而排气且仍不腹泻，腹泻属虚，不腹泻属实。想大便却反而排气，说明里气有热，这属于阳明病，大便必定干硬。十三天痊愈的原因，是伤寒六天传遍三阴三阳经，再过六天再次传经结束，此时阴阳之气调和，大邪之气去除而痊愈。
腹泻停止后，大便应当变硬，大便变硬如果能吃东西，说明会痊愈；现在反而不能吃，等到下一个经周期中，稍微能吃东西了，再过一个经周期能吃东西，过了一天，应当痊愈。如果不愈，说明不属于阳明病。
腹泻停止后，津液耗损，大便应当变硬。能吃东西说明胃气调和，必定自愈；不能吃东西，说明尚未调和。等到下一个经周期，即言七日后再行一经。稍微能吃东西，说明胃气正在调和，过一天应当痊愈。如果不愈，是因为突发高热使人能进食，并非阳明气和的表现。
恶寒、脉微，并且腹泻，腹泻停止，这是阴血耗损，用四逆加人参汤主治。（赵本有“四逆加人参汤方”，详见卷十）
恶寒、脉微且腹泻，是阳虚阴盛。腹泻停止则津液在内枯竭，所以说亡血。《金匮玉函》说：水枯竭则无血。给予四逆汤温通经脉、助益阳气，加入人参生津液、补益血液。
霍乱，头痛、发热、身体疼痛，热多且想喝水的，用五苓散主治；寒多且不想喝水的，用理中丸主治。（赵本有“五苓散方”，详见卷三）
头痛发热，说明邪气来自风寒。中焦是寒热各半的分界，邪气稍高的，居于阳分，则为热，热多且想喝水的，给予五苓散以发散邪气；邪气稍低的，居于阴分，则为寒，寒多且不想喝水的，给予理中丸以温中散寒。
理中丸方：
人参（甘温） 甘草（炙。甘平） 白术（甘温） 干姜（以上。赵本无此二字。各三两。辛热）
《内经》说：脾脏喜欢舒缓，急切地食用甘味药来舒缓它。用甘味药补益，用人参、白术、甘草的甘味，来舒缓脾气、调理中焦。寒邪盛行，用辛热药来平抑。干姜的辛味，用来温暖胃腑、散发寒气。
以上四味药，捣碎筛成粉末，用蜂蜜和成药丸，如鸡子黄大小，（赵本作“捣碎筛粉，蜂蜜和成药丸，如鸡蛋黄那么大”）用沸水几合，溶化一丸药，研碎，温服。每天三四次，夜间两次。如果腹中没有温热感，增加到每次三四丸，然而效果不如汤剂。汤剂的用法，将四味药按原重量切碎，用水八升，煮取三升，去渣，温服一升，每天三次。
加减法：（赵本无此三字）
如果脐上跳动，是肾气动扰，去掉白术，加入桂枝四两。
脾虚导致肾气动扰，表现为脐上筑动。《内经》说：甘味药令人中焦胀满。白术甘味壅滞补益，桂枝泄奔豚之气，所以互相替换。
呕吐多的，去掉白术，加入生姜三两。
呕吐患者不喜欢甘味，所以去掉白术；呕吐患者多用生姜，利用其辛味发散邪气。
腹泻多的，还用白术；心悸的，加入茯苓二两。
腹泻多的，用白术去除湿气；心悸加茯苓以疏导气机。
口渴想喝水的，增加白术，足前总量成四两半。
津液不足则口渴，白术甘味以舒缓燥渴。
腹中痛的，加入人参，足前总量成四两半。
里虚则痛，加入人参以补益。
寒盛的，加入干姜，足前总量成四两半。
寒邪盛行，用辛热药平抑。
腹部胀满的，去掉白术，加入附子一枚。服药后，像吃饭一顿饭的时间，喝热粥约一升，微微保暖，不要掀开衣被。
胃虚则气壅滞导致腹部胀满，甘味令人中焦胀满，所以去掉白术；附子的辛味，用来补阳、消散壅滞。
呕吐和腹泻停止但身体疼痛不止的，应当斟酌情况和解表邪，适宜用小剂量的桂枝汤调和。（赵本有“桂枝汤方”，详见卷二）
呕吐和腹泻停止，说明里气调和；身体疼痛不止，说明表邪未解。给予桂枝汤小剂量调和。《外台秘要》说：里和表病，发汗则痊愈。
呕吐、腹泻、出汗，发热恶寒，四肢拘挛紧急，手足冰冷的，用四逆汤主治。（赵本有“四逆汤方”，详见卷二）
上吐下泻，里虚出汗，发热恶寒，表邪未解；四肢拘挛紧急，手足冰冷，是阳虚阴盛。给予四逆汤助阳退阴。
既呕吐又腹泻，小便反而通畅且大汗出，下利完谷不化，内寒外热，脉微欲绝的，用四逆汤主治。
吐利导致津液耗损，则小便应当减少，现在小便反而通畅且大汗出，津液不禁固摄，说明阳气大虚。脉微表示阳气耗损，如果没有外热，只有内寒，下利完谷不化，为纯阴证；此处因为有外热，说明阳气未绝，还可以用四逆汤救治。
呕吐和腹泻已经停止，但出汗且手脚冰冷，四肢拘挛紧急不缓解，脉微欲绝的，用通脉四逆加猪胆汁汤主治。（赵本无“汁”字）（赵本有“通脉四逆加猪胆汤方”，详见卷十）
呕吐和腹泻已经停止，津液在内枯竭，则不应当出汗，出汗的，不应当手脚冰冷；现在出汗且手脚冰冷，四肢拘挛紧急不缓解，脉微欲绝，是阳气大虚，阴气独盛。如果单纯给予阳药，恐怕阴气格拒，或者呕吐或者烦躁，药物无法进入体内；给予通脉四逆汤加猪胆汁，胆汁苦味入心而通血脉，胆汁寒性补肝而调和阴气，引导阳药不被格拒。《内经》说：病势轻微的逆其病性治疗，病势严重的顺从其病性治疗。说的就是这种情况。
呕吐、腹泻并发汗后，脉象平和，只是轻微烦闷的，是因为新近体虚不胜受纳谷气的缘故。
《内经》说：食物进入阴分，滋养阳气。新近体虚不胜受纳谷气，因而产生轻微烦闷。
Question: What is Huoluan (cholera-like disease)? Answer: Vomiting accompanied by diarrhea is called Huoluan. (Zhao's edition writes "this is named Huoluan".)
The Sanjiao (Triple Burner) is the pathway for water and grain. When pathogenic factors are in the Upper Jiao, there is vomiting without diarrhea; when in the Lower Jiao, there is diarrhea without vomiting; when in the Middle Jiao, there is both vomiting and diarrhea. Due to irregular diet and disharmony of cold and heat, clear turbid qi interfere with each other, and Yin and Yang qi become disjointed and separated, thus forming Huoluan. In mild cases, it is merely called vomiting and diarrhea; in severe cases, with sudden turmoil and disorder, it is named Huoluan.
Question: A patient presents with fever, headache, body ache, aversion to cold, along with vomiting and diarrhea. To which disease does this belong? Answer: This is named Huoluan. (Zhao's edition contains the characters "Huoluan".)
If after spontaneous vomiting and purging, the diarrhea stops but fever recurs.
Fever, headache, body ache, and aversion to cold originally belong to Shanghan (Cold Damage). Because the pathogen has entered the interior and damaged the Spleen and Stomach, causing upper vomiting and lower diarrhea, it transforms into Huoluan. If the diarrhea stops, indicating that the interior is harmonized, but fever recurs, this remains Shanghan, and recovery will certainly occur through sweating.
In Shanghan, if the pulse is faint and choppy, it was originally Huoluan, now transformed into Shanghan. After four or five days, when the pathogen enters the Yin meridians and transitions into the Yin level, diarrhea must ensue. For those who originally had vomiting and diarrhea, this condition is difficult to treat.
If one feels the urge to defecate but instead passes flatus, and still does not have diarrhea, this belongs to the Yangming stage. The stool will likely be hard. Recovery will occur on the thirteenth day. The reason for this is that the meridian cycle has completed its course.
A faint pulse indicates loss of Yang Qi, while a choppy pulse indicates loss of Blood. In Shanghan with a faint and choppy pulse, it implies the original condition was Huoluan, where vomiting and diarrhea led to the depletion of Yang Qi and Blood. Once vomiting and diarrhea cease, the Shanghan pathogen has not yet resolved, so it remains Shanghan. At the time of four or five days, when the pathogen transmits to the Yin meridians, the deficient interior encounters the pathogen, inevitably causing spontaneous diarrhea. Those who originally vomited had pathogenic excess in the upper part; those who also had diarrhea had pathogenic excess in the lower part. Having first suffered from Huoluan resulting in severe deficiency of interior Qi, and then having the Shanghan pathogen transmit again causing vomiting and diarrhea, represents a double deficiency. Therefore, it is considered untreatable. If one desires to defecate but instead passes flatus and still does not have diarrhea, diarrhea indicates deficiency, while lack of diarrhea indicates excess. Desiring to defecate but passing flatus suggests heat in the interior. This belongs to the Yangming stage, and the stool will definitely be hard. Recovery in thirteen days occurs because, after six days of transmission through all Yin and Yang meridians, another six days complete the second cycle, at which point Yin and Yang Qi harmonize, the major pathogenic factor dissipates, and healing occurs.
After diarrhea ceases, the stool should become hard. If the patient can eat, they will recover; if they cannot eat now, but later, during the next meridian period, can eat slightly, and then after another full meridian cycle can eat, they should recover one day later. If they do not recover, it does not belong to the Yangming stage.
After diarrhea ceases, body fluids are depleted, and the stool should become hard. Ability to eat indicates harmonious Stomach Qi and inevitable self-recovery; inability to eat indicates disharmony. Entering the next meridian period refers to seven days later completing another cycle. Slight ability to eat indicates that Stomach Qi is beginning to harmonize, and recovery should occur within a day. If not, the ability to eat is caused by sudden intense heat, not by the harmony of Yangming Qi.
Aversion to cold, faint pulse, and diarrhea, where the diarrhea stops indicating blood depletion, is treated with Sini Jia Renshen Tang (Four Reversal Decoction plus Ginseng Decoction). (Zhao's edition has "Sini Jia Renshen Tang Formula", see Volume 10.)
Aversion to cold, faint pulse, and diarrhea indicate Yang deficiency and Yin excess. Cessation of diarrhea means internal fluids are exhausted, hence termed "loss of blood." The *Jingui Yufan* states: "When water is exhausted, there is no blood." Administer Sini Tang to warm the meridians and assist Yang, adding Renshen (Ginseng Root) to generate fluids and benefit blood.
For Huoluan presenting with headache, fever, and body pain, if there is more heat and desire for water, Wuling San (Five-Ingredient Powder with Poria) is indicated; if there is more cold and no desire for water, Lizhong Wan (Regulate the Middle Pill) is indicated. (Zhao's edition has "Wuling San Formula", see Volume 3.)
Headache and fever indicate the pathogen comes from Wind-Cold. The Middle Jiao is the division between half-cold and half-heat. Pathogens situated higher reside in the Yang aspect, manifesting as heat; with more heat and desire for water, administer Wuling San to disperse them. Pathogens situated lower reside in the Yin aspect, manifesting as cold; with more cold and no desire for water, administer Lizhong Wan to warm them.
Lizhong Wan Formula:
Renshen (Ginseng Root; Sweet, Warm) Gancao (Licorice Root; Roasted; Sweet, Neutral) Baizhu (Atractylodes Rhizome; Sweet, Warm) Ganjiang (Dried Ginger; All above. Zhao's edition lacks these two characters. Each three liang; Acrid, Hot)
The *Neijing* states: "The Spleen desires relaxation; urgently consume sweet substances to relax it." Use sweet herbs to tonify: the sweetness of Renshen, Baizhu, and Gancao relaxes Spleen Qi and regulates the Middle. When Cold pathogens prevail, use Acrid-Hot substances to pacify them. The acridity of Ganjiang warms the Stomach and disperses Cold.
Grind the above four ingredients into powder, mix with honey to form pills the size of a chicken egg yolk. (Zhao's edition reads: "Grind and sieve, mix with honey to form pills the size of a chicken egg yolk.") Dissolve one pill in several he of boiling water, crush it, and take warm. Take three or four times daily, and twice at night. If warmth is not felt in the abdomen, increase to three or four pills per dose. However, the decoction is superior. For the decoction method, cut the four ingredients according to their weights, add eight sheng of water, boil to obtain three sheng, remove the dregs, and take one sheng warm, three times daily.
Modifications: (Zhao's edition lacks these three characters)
If there is pulsation above the navel, it indicates Kidney Qi moving. Remove Baizhu and add Guizhi (Cinnamon Twig) four liang.
Spleen deficiency leading to moving Kidney Qi manifests as pulsation above the navel. The *Neijing* states: "Sweet substances cause fullness in the center." Baizhu is sweet and cloyingly tonifying, while Guizhi drains Ben Tun (fleeing tumor); thus, they are exchanged.
For excessive vomiting, remove Baizhu and add Shengjiang (Fresh Ginger) three liang.
Those prone to vomiting dislike sweet flavors, so remove Baizhu; those with vomiting often use Shengjiang to disperse using its acridity.
For excessive diarrhea, continue using Baizhu; for palpitations, add Fuling (Poria) two liang.
Excessive diarrhea uses Baizhu to drain dampness; palpitations add Fuling to guide Qi.
For thirst and desire for water, increase Baizhu to total four and a half liang.
Insufficient body fluids cause thirst; Baizhu's sweetness relieves it.
For abdominal pain, add Renshen to total four and a half liang.
Interior deficiency causes pain; add Renshen to tonify.
For Cold conditions, add Ganjiang to total four and a half liang.
When Cold prevails, use Acrid-Hot substances to pacify.
For abdominal fullness, remove Baizhu and add one Fuzi (Aconite Lateral Root). After taking the decoction, similar to the duration of a meal, drink about one sheng of hot porridge to maintain slight warmth. Do not uncover clothes or blankets.
Stomach deficiency leads to Qi stagnation and abdominal fullness; sweet substances cause central fullness, hence Baizhu is removed; Fuzi's acridity tonifies Yang and dissipates stagnation.
If vomiting and diarrhea cease but body pain persists, one should assess and harmonize the exterior; Gui Zhi Tang (Cinnamon Twig Decoction) should be used in a small dose to harmonize. (Zhao's edition has "Gui Zhi Tang Formula", see Volume 2.)
Vomiting and diarrhea ceasing indicates interior harmony; persistent body pain indicates the exterior is unresolved. Administer Gui Zhi Tang in a small dose to harmonize. The *Waitai Misha* states: "When the interior is harmonious and the exterior diseased, sweating will cure it."
With vomiting, diarrhea, sweating, fever, aversion to cold, limb stiffness and urgency, and cold extremities, Sini Tang (Four Reversal Decoction) is indicated. (Zhao's edition has "Sini Tang Formula", see Volume 2.)
Upper vomiting and lower diarrhea, interior deficiency with sweating, fever and aversion to cold, indicate unresolved exterior; limb stiffness and cold extremities indicate Yang deficiency and Yin excess. Administer Sini Tang to assist Yang and retreat Yin.
With both vomiting and diarrhea, frequent urination, profuse sweating, diarrhea with undigested food, interior cold with exterior heat, and a faint pulse nearly imperceptible, Sini Tang is indicated.
Vomiting and diarrhea deplete body fluids, so urine should decrease; frequent urination and profuse sweating indicate uncontrolled fluids and severe Yang deficiency. A faint pulse indicates loss of Yang. Without exterior heat, only interior cold, and diarrhea with undigested food constitutes pure Yin; here, the presence of exterior heat indicates Yang is not yet extinct, so Sini Tang can still be used to rescue.
If vomiting and diarrhea have ceased, but sweating and cold extremities persist, limb stiffness and urgency remain unresolved, and the pulse is faint and nearly imperceptible, Tongmai Sini Jia Zhuyedan Tang (Decoction to Restore the Pulse, Four Reversal plus Pig Bile) is indicated. (Zhao's edition lacks the character "Zhi" [juice].) (Zhao's edition has "Tongmai Sini Jia Zhu Dan Tang Formula", see Volume 10.)
Cessation of vomiting and diarrhea means internal fluids are exhausted, so sweating should not occur; if sweating occurs, cold extremities should not follow. Now, with sweating, cold extremities, unresolved limb stiffness, and a faint, nearly imperceptible pulse, this indicates severe Yang deficiency and exclusive dominance of Yin. If purely administering Yang-tonifying drugs, there is fear that Yin will reject them, potentially causing vomiting or restlessness, preventing the medicine from entering. Administer Tongmai Sini Tang plus Pig Bile. Bile's bitterness enters the Heart to unblock vessels; its cold nature benefits the Liver to harmonize Yin, guiding the Yang medicines so they are not rejected. The *Neijing* states: "For minor conditions, oppose them; for severe conditions, follow them." This is what is meant.
After vomiting, diarrhea, and sweating, if the pulse is calm but there is slight irritability, it is because the newly weakened state cannot withstand the grain qi.
The *Neijing* states: "Food enters the Yin and generates Qi in the Yang." New weakness unable to handle grain qi generates slight irritability.