论曰，舟非水不行，然波涛沸溢，则覆舟之患生，人非气不活，然痰涎并积，则倾人之
患至，波涛非自生也，其所以生者，不平之势作之也，痰涎非自积也，其所以积者，不顺之
气留之也。故善行舟者，不惧波涛，而惧舟之不完善摄生者，不惧痰涎，而惧气之不顺，故
世人之疾病，其所以残伤性命之急者，无甚于痰涎，而世之医者，乃有见之而不能识，忽有
识之而不能治。此不幸之人，其残伤夭横者，不可胜数，何则、举天下之人，独知风气之有
涎，不知脏腑冷亦生涎，热亦生涎，痰涎一生，千变万化，而病之所起，非特一端，愚今
略举数端明之，后之学人，于诊疗之际，类而推之，亦庶几其疾病之徒无夭横者矣，夫涎之
为名一也，而具数种。一曰风涎，二曰热涎，三曰冷涎，四曰病涎，五曰虚涎，六曰毒涎，
其一曰风涎盖因人之风气之盛，上运于涎，不能下入于胃，风气一蒸痰涎并起，而上填塞胸
中，即使人闷倒无知，其风气久而不顺，性命之倾危，速如反掌，若其风气未盛，逡巡之间，
仍复自顺，其涎亦随气而下，即平复如故，此盖人之肌肉浓，凑里深，风不得泄于外，风热
内攻大府秘热，毒瓦斯上攻，遂生斯疾，此名之曰风涎，然风涎之为名一也，而人脏腑虚实之
不同，则涎之为病也，变化不一，愚得以命其变而言之，若今人之病，大府实热，痰涎满口
，吐如清胶，胸中喘息如常，但汤水饮食俱不可进，凡所饮食，只到喉中，即不能下用力咽
下，即喉中隔绝，喘急闷倒，良久方愈，惟进得些小胶粥，此亦风涎之候也，然风涎之候变
不同，则当如何而治之。
曰∶善除荆棘者，先断其根，善治风痰者，先顺其气，人身无倒上之涎，天下无逆流之
水，今风痰一上，而填塞胸中，倾人性命者，风气运而上也，今之治风涎者，多使天南星、
半夏之类，是不知病之源流，去荆棘而不除其根也，苟能以药先顺其风气，兼发其凑理，使
其风气得以发泄于外，顺行于内，则其胸中之痰涎，自随气而下，未吃涎药，而痰涎自顺矣
，然病势之有轻重则取之有缓急，若风气炎盛，胶涎并起，其气卒难以顺之者，当制之以急
，非吐之不可，风气未极，痰涎未并，为害未深者，当制之以缓，先顺其气而后治其涎也，
此亦治涎之大约也，然风涎之候，又有冷热之不同，或有寒风所中，冷涎所聚，其人必先于
半年或数月前，吃食减少，身体沉重，筋脉痿弱，才见肉味，便觉恶心，非时口中一两点冷
涎出，身不自觉，冷涎所并，忽闷倒不知人事，良久复苏，即生麻痹，或生 曳，或失音不
语，冷涎所积，少有上并，多聚中焦，盈溢胸中，包裹心络，能使人狂言妄语，神识不定，
非特不觉，手臂忽自举动，如此为冷涎之所中也。
治之法，先以温暖之药，散其冷毒之气，急以热药，发其腠理，然后以治涎之药，取下
其涎，虽且暂安，而寒风所中于人，亦甚不久，何则、热风中人，如天地春夏之风，长含生
气，以养万物，其人虽病难死，此古人所谓风所以能养人也，寒风所中于人，如天地秋冬之
风，长含杀气，以肃杀万物，其人所中，非久必死，此古人所谓风所以能害人也，其二曰热
涎，若今有取性之丈夫，多餐荤腻，好食咸酸，以色为心，恣贪补药，忽因醉酒房室，劳伤
其精，丹元髓海，虽以空虚，而脏腑骨 ，虚热转盛，其涎所积，隔在中焦，因其肾脏之虚
寒，邪气与热涎相交，发为疼痛，重则不移时而倾人性命，医者治之，不过曰，此肝肾之气
，是不知热涎乃病之根本，然京三棱，蓬莪术，非能治气，而世人用而不验者，不识其病之
源流也，善为医者，临事制宜，随机应变，审当轻重，涎多者吐之，涎少者下之，所用之药
，偏取肝家之风毒，又何患乎人之不安哉，三曰冷涎者，若今人之肝脏有余，脾气不足，忽
因使性，长怀淤怒，伤损肝心正气，此冷涎之所以积也，脾气不足，复因肝气所乘，伏而不
动，停水滞谷，久而不化，肝心长怀淤怒，则其气滞涩而不行，此冷涎之所以积也，然肝
生风，性之不定，忽时而作，肝主怒，怒则气逆，此冷涎所以随气而上，而生人之大病也，
证其候而言之，则其病必先闻心前溃乱不快，相次闻有一物，随气而上，触至咽喉，即闷倒
不知人事，手足肌肉，渐次寒冷，逡巡复平愈，治之之法，当以吐药取之，得其所取之涎，
其清如水，其冷如雪，取涎之后，更审其脏气，随其所病而调和之，亦无患乎药之不验也，
四曰病涎，其人必好食坚硬之物，伤损脾气，忽因淤怒，伤损心肝正气，忽因寒邪热毒之伤
，忽因大病之后，余毒客在脏腑，其气结涩昏滞，不能宣畅，是以痰涎因而聚积，涎与滞气
相交，往往发为疼痛，此名之为病涎者也。
明其病证，在心前痛，轻则连年累月，痛无暂停，重则倾人性命，速如反掌，重轻之殊
，涎之多少也，治之之法，当在量其病势轻重，以利药取之，轻则其涎如油，重则其凝如白
胶，取涎之后，然后使药清其藏气，益其正气，使之平复如故也，五曰虚涎，其人必因受气
之虚，忽因大病之后生冷所伤，忽因疾病之间，淫欲不节，致令脏腑之气，空虚羸乏，而骨
之间，虚热上蒸，上气镇长有余，下气但常不足，阴阳之气，不相交际，不顺之气，隔在
中焦，是以虚涎因而积聚，风热一攻，即其涎并上，初发作时，先觉清涎满口，渐闻心前有
一物，上触咽喉，即喉中急促，闷倒不觉，两手相乱把拽，风气极上，即头上痒，忽皮脐间
痛，逡巡风气顺下，乃遂平复，治之之法，当以临发时使五分利药取之，以其胃气不足，不
可十分利吐也，若利吐不出，非时以坏风涎药搅之，候分数少减，即于气海上安之一灸，引
其涎下入于胃，然后使药调其脏气，酌量其脏腑之虚实，有余者泻，不足者补，令上下之气
相等，可庶几其全安也，若脉气微细，大府虚冷，减其肝气，益其胃气斯可矣，若小儿得病
者，全是胃气之虚，气海上安灸，补暖脾胃，以愈斯痰，仍不辄吃取风涎药也，六曰毒涎，
若今人之患阳毒伤寒，肝心脾肺受其疫毒之气，因其毒涎相积聚在中，候其证，即使人大府
秘热，小便黄涩，面色黯赤，浑身发热，昏昏如醉，狂言妄语，不知人事，如此之候，悉皆
是涎，诊其脉气，又却沉伏，重手取之，骨间乃得。
此乃疫毒之涎，盈溢心胸，伏其脉气，非脉气之与病相反者也，此所谓毒涎者矣，治之
之法，急以疏转之药，取其毒瓦斯，荡下其涎所下之药，须心肝脾肺四脏俱治，然当以肝脏为
主，偏下肝脏之药为要也，虽然，涎之为病，千变万化，其状不一，是今之所举数端，止其
大略而已，后之学人，类而推之，加以识见之明，而诊疗无差，亦无患乎涎为人之大患者矣
论述说：船没有水无法航行，但如果波涛汹涌翻腾，就会发生翻船的祸患；人没有气机不能存活，但如果痰涎积聚，就会导致倾覆生命的灾祸。波涛不是自然产生的，导致它产生的是地势不平的作用；痰涎也不是自然积聚的，导致它积聚的是气机不顺的滞留。所以善于行船的人，不害怕波涛，而担心船只不完善；善于养生的人，不害怕痰涎，而担心气机不顺。因此世人的疾病中，那些急迫地残害性命的，没有比痰涎更严重的了。然而世间的医生，有的看见了却不能识别，有的虽然识别了却不能治疗。这些不幸的人，因残害而早夭或横死的，数不胜数。为什么呢？普天下的人，只知道风气能产生痰涎，却不知道脏腑寒冷也能生痰涎，脏腑热盛也能生痰涎。痰涎一旦产生，千变万化，疾病的起因并非只有一种。我如今略举几端来阐明它，后来的学医之人，在诊疗时类推它，或许就可以使人们避免无谓的夭折横死吧。
痰涎的名目虽然只有一个，但包含几种类型。一是风涎，二是热涎，三是冷涎，四是病涎，五是虚涎，六是毒涎。
所谓风涎，大概是因为人体风气偏盛，向上熏蒸于涎液，使其不能下行入胃。风气一蒸腾，痰涎随之并起，向上填塞胸中，使人闷倒无知。如果风气久而不顺，性命危殆的速度快如反掌；如果风气尚未极盛，片刻之间又能自行顺降，那么涎液也随气下行，随即恢复如初。这大概是人的肌肉丰厚，腠理致密，风邪不得从外发泄，风热内攻大肠秘结之热，毒瓦斯上攻，于是生出这种病，名叫风涎。然而风涎之名虽一，但因人脏腑虚实不同，痰涎为病的表现变化不一。我得以将其变化命名而言：比如现在人的病证，若是大肠实热，痰涎满口，吐出的像清胶一样，胸中呼吸尚且正常，只是汤水饮食都无法进咽。凡所饮食，刚到喉中，就不能下咽；用力咽下，喉中便隔绝不通，喘急闷倒，很久才能缓解，只能进服少量胶粥，这也是风涎的症状。然而风涎的症状变化不同，应当如何治疗呢？
回答说：善于清除荆棘的人，先斩断其根；善于治疗风痰的人，先理顺其气。人身没有倒向上流的涎，天下没有逆向上流的水。现在风痰一上逆，填塞胸中，危及性命，这是风气运化而上导致的。现在治疗风涎的人，多用天南星、半夏之类的药物，这是不知道病的源流，如同去荆棘而不除其根。如果能用药物先顺其风气，兼发其腠理，使风气得以向外发泄，向内顺行，那么胸中的痰涎自然会随气下行，还没吃治涎的药，痰涎就已经顺行了。然而病情有轻重，取法就有缓急。如果风气炎盛，胶固的涎液并起，气机突然难以理顺，应当用急法治之，非催吐不可；如果风气未至极点，痰涎未并集，危害未深，应当用缓法治之，先顺其气然后治其涎。这也是治疗痰涎的大概原则。
然而风涎的症状，又有冷热之分。有的被寒风所中，冷涎聚集，其人必先在半年或几个月前，进食减少，身体沉重，筋脉痿弱，刚见到肉味就觉得恶心，不时口中流出一点两点冷涎，身体自己不觉察。冷涎聚集，忽然闷倒不知人事，很久才苏醒，随即出现麻痹，或者肢体牵引抽搐，或者失音不语。冷涎积聚，少有上逆并集的，大多聚在中焦，盈溢胸中，包裹心包络，能使人胡言乱语，神识不定，不仅神志不清，手臂忽然自动举动，这就是冷涎所中的表现。
治疗方法，先用温热的药物，散其冷毒之气，急用热药，发散其腠理，然后用治涎的药物，攻下其涎。虽然暂时安宁，但寒风中人，也不会长久存活。为什么呢？热风中人，就像天地春夏的风，长含生气，以养育万物，人即使生病也难死亡，这是古人所说的“风所以能养人也”；寒风所中人，就像天地秋冬的风，长含杀气，以肃杀万物，人所中的，如果不长久（指病程短）必死，这是古人所说的“风所以能害人也”。
第二种叫热涎。比如现在有些任性的大丈夫，多吃荤腥油腻，喜好咸酸食物，沉迷女色，恣意进补药物，忽然因为醉酒房事，劳伤精气。丹田元海，虽然空虚，但脏腑骨髓间，虚热转盛。其涎积聚，阻隔在中焦，因其肾脏虚寒，邪气与热涎相交，发作疼痛，重则不到一个时辰就危及性命。医生治疗它，不过说是肝肾之气的问题，这是不知道热涎才是病的根本。然而京三棱、蓬莪术，并不能治气，世人使用而不灵验，是不认识病的源流。善于做医生的，遇事制宜，随机应变，审察病情轻重。涎多者用吐法，涎少者用下法。所用的药物，偏取肝脏的风毒之药，又何必担心病人不安稳呢？
第三种叫冷涎。比如现在人的肝脏有余，脾气不足，忽然因为发脾气，长期怀有郁怒，损伤肝心正气，这就是冷涎积聚的原因。脾气不足，又因肝气乘袭，潜伏不动，停水滞谷，久而不化；肝心长期怀有郁怒，则气机滞涩不行，这也是冷涎积聚的原因。然而肝生风，性情不定，忽时而作；肝主怒，怒则气逆，这就是冷涎随气上逆，而生大病的原因。根据症状来说，这病必定先感到心前区溃乱不适，接着感觉有一物随气上逆，触至咽喉，随即闷倒不知人事，手足肌肉渐渐寒冷，片刻后恢复平愈。治疗的方法，应当用吐药取之。取得其所吐出的涎，清澈如水，寒冷如雪。取涎之后，再审察其脏气，随其所病而调和它，也没有担心药不灵验的了。
第四种叫病涎。其人必定喜好食用坚硬之物，损伤脾气，忽然因为郁怒，损伤心肝正气，或者因为寒邪热毒的伤害，或者因为大病之后，余毒客居在脏腑，气机结涩昏滞，不能宣畅，因此痰涎因而聚积。涎与滞气相交，往往发作疼痛，这就叫做病涎。
明了其病证，在心前疼痛，轻则连年累月，痛无暂停，重则危及性命，快如反掌。轻重之别，在于涎的多少。治疗的方法，应当衡量病势轻重，用利药取之。轻则其涎如油，重则其凝如白胶。取涎之后，然后用药物清理其藏气，益其正气，使之恢复如初。
第五种叫虚涎。其人必定因为受气虚弱，忽然因为大病之后受生冷伤害，或者因为疾病期间，淫欲不节制，致使脏腑之气，空虚羸乏，而骨节之间，虚热上蒸，上气常显有余，下气却常不足，阴阳之气，不相交际，不顺之气，阻隔在中焦，因此虚涎因而积聚。风热一攻，其涎便并集上逆。初发作时，先觉得清涎满口，渐觉心前有一物上触咽喉，随即喉中急促，闷倒不觉，两手互相乱抓乱拽，风气极上，则头上痒，忽然肚脐间疼痛，片刻后风气顺降，于是平复。治疗的方法，应当在临发作时用五分量的利药取之，因为其胃气不足，不可以用十分量的利吐药。如果利吐不出，不时用坏风涎药搅动，候分数稍减，就在气海穴施灸一壮，引其涎下入于胃，然后用药物调其脏气，酌量其脏腑的虚实，有余的泻，不足的补，令上下之气相等，或许可以完全安康。如果脉气微细，大肠虚冷，减其肝气，益其胃气就可以了。如果是小儿得病，全是胃气之虚，在气海穴施灸，补暖脾胃，以此治愈此痰，仍然不要随便吃取风涎的药。
第六种叫毒涎。比如现在人患阳毒伤寒，肝心脾肺受其疫毒之气，因其毒涎相积聚在中。看其症状，即使人大肠秘热，小便黄涩，面色黯赤，浑身发热，昏昏如醉，胡言乱语，不知人事。这样的症状，全都是涎。诊其脉气，却又沉伏，重手按之，在骨间才得到。
这是疫毒之涎，盈溢心胸，伏匿其脉气，并不是脉气与病相反，这就是所谓的毒涎。治疗的方法，急用疏转的药物，取其毒瓦斯，荡涤下其涎。所下的药物，必须兼顾心肝脾肺四脏，然而当以肝脏为主，偏用治肝脏的药物为关键。
虽然如此，涎之为病，千变万化，形状不一。是如今所举的几端，只是其大略而已。后来的学医之人，类推它，加上见识明确，则诊疗无差错，也就没有担心涎成为人的大患的了。
It is said that boats cannot navigate without water, yet if waves boil and overflow, the disaster of capsizing arises. Humans cannot survive without Qi (vital energy), yet if phlegm and saliva accumulate, the disaster of life-threatening collapse occurs. Waves do not arise spontaneously; their cause is the uneven terrain. Phlegm and saliva do not accumulate spontaneously; their cause is the stagnation of unsmooth Qi. Therefore, those skilled in navigating boats do not fear the waves but fear the imperfection of the boat; those skilled in preserving health do not fear phlegm and saliva but fear the unsmoothness of Qi. Thus, among the diseases of people in the world, none are more urgent in damaging life than phlegm and saliva. Yet, physicians of the world see them but fail to recognize them, or recognize them but fail to treat them. The number of unfortunate people who suffer premature death or sudden death from this is countless. Why? People throughout the world know only that Wind pathogen can produce phlegm and saliva, but do not know that Cold in the Zang-Fu organs also produces phlegm and saliva, nor does Heat in the Zang-Fu organs fail to produce it. Once phlegm and saliva arise, they transform in thousands of ways, and the origins of disease are not limited to a single aspect. I now briefly list several aspects to clarify this, so that future students of medicine, by analogy and deduction during diagnosis and treatment, may perhaps prevent people from suffering unnecessary premature or sudden deaths.
Although the name "phlegm and saliva" is one, it encompasses several types: 1. Wind Phlegm and Saliva (Feng Xian), 2. Heat Phlegm and Saliva (Re Xian), 3. Cold Phlegm and Saliva (Leng Xian), 4. Disease Phlegm and Saliva (Bing Xian), 5. Deficiency Phlegm and Saliva (Xu Xian), 6. Toxic Phlegm and Saliva (Du Xian).
Regarding Wind Phlegm and Saliva (Feng Xian): It is generally caused by an excess of Wind in the body rising to steam the fluids, preventing them from descending into the Stomach. When Wind steams, phlegm and saliva rise together, filling the chest and causing fainting and loss of consciousness. If the Wind remains unsmooth for a long time, the danger to life is as swift as turning a palm; if the Wind has not reached its peak, it may smooth out within moments, allowing the saliva to descend with the Qi, restoring normalcy. This often occurs when muscle layers are thick and interstices (Cou Li) are dense, preventing Wind from venting externally. Internal attack by Wind-Heat on the Large Intestine causes constipation and heat, while toxic vapors attack upward, resulting in this condition named Wind Phlegm and Saliva. However, although the name is the same, variations occur due to differences in the deficiency or excess of the Zang-Fu organs. For instance, in current cases where the Large Intestine has Excess Heat, phlegm fills the mouth, resembling clear glue. Breathing in the chest may remain normal, but no food or drink can be swallowed. Food reaches the throat but cannot go down; forcing it down causes blockage, panting, fainting, and recovery only after a long time, with only small amounts of thick porridge acceptable. This is also a symptom of Wind Phlegm and Saliva. Given these varying symptoms, how should it be treated?
The response is: One who excels at clearing thorns first cuts the roots; one who excels at treating Wind-Phlegm first smooths the Qi. There is no phlegm that flows upward against gravity in the human body, nor water that flows upstream in the world. When Wind-Phlegm rises and blocks the chest, endangering life, it is because Wind moves upward. Currently, many treating Wind-Phlegm use herbs like Tian Nan Xing (Arisaema Rhizome) and Ban Xia (Pinellia Tuber), which ignores the source and flow of the disease, akin to removing thorns without pulling the roots. If one uses medicine first to smooth the Wind Qi and simultaneously open the Cou Li (interstices/skin pores), allowing Wind to vent externally and move smoothly internally, the phlegm in the chest will naturally descend with the Qi. The phlegm will become smooth even before taking specific phlegm-resolving medicines. However, treatment must be urgent or slow depending on severity. If Wind is blazing and sticky phlegm rises, making Qi difficult to smooth suddenly, urgent treatment via emesis (vomiting) is necessary. If Wind is not extreme and phlegm has not fully gathered, posing less harm, slow treatment is appropriate: first smooth the Qi, then treat the phlegm. This is the general principle of treating phlegm.
However, Wind Phlegm varies in Cold and Heat. Some are struck by Cold Wind, causing Cold Phlegm accumulation. Such individuals likely had reduced appetite and heavy bodies, weak sinews and vessels, and nausea upon seeing meat, half a year or months prior. Occasionally, cold saliva droplets appear without awareness. When Cold Phlegm gathers, sudden fainting occurs, followed by numbness, limb twitching, aphasia, etc. Cold Phlegm usually accumulates in the Middle Jiao, overflowing the chest, enveloping the Pericardium, causing delirium, unstable spirit, and involuntary arm movements. This is Cold Phlegm invasion.
Treatment involves first using warm medicines to disperse Cold-Toxic Qi, urgently applying hot medicines to open the Cou Li, and then using phlegm-draining medicines to evacuate the phlegm. Although temporarily relieved, those struck by Cold Wind do not survive long. Why? Warm Wind resembles Spring/Summer winds, containing Life-Qi to nourish all things; illness from such wind rarely leads to death, as ancients said, "Wind can nourish." Cold Wind resembles Autumn/Winter winds, containing Killing-Qi to wither all things; illness from such wind leads to death quickly, as ancients said, "Wind can harm."
Second is Heat Phlegm and Saliva (Re Xian). This affects men of strong temper who consume rich, greasy, salty, and sour foods, indulge in lust, and recklessly take tonics. Sudden exhaustion from drunkenness and sexual activity damages Essence. Although the Dantian and Marrow Sea are empty, internal deficiency-Heat intensifies. Phlegm accumulates in the Middle Jiao; due to Kidney Cold, Evil Qi interacts with Heat Phlegm, causing pain. Severe cases lead to death within hours. Physicians mistakenly attribute this to Liver/Kidney Qi issues, ignoring that Heat Phlegm is the root. Herbs like San Leng (Sparganium Rhizome) and E Zhu (Curcuma Rhizome) do not treat Qi directly; their ineffectiveness stems from misunderstanding the disease's origin. Skilled physicians adapt to circumstances, assessing severity. For abundant phlegm, use emesis; for scant phlegm, use purgation. Medicines should target Liver Wind-Toxicity.
Third is Cold Phlegm and Saliva (Leng Xian). This occurs when Liver Qi is Excess and Spleen Qi is Deficient. Sudden anger and chronic resentment damage Heart and Liver Righteous Qi, causing Cold Phlegm accumulation. Spleen Deficiency allows Liver Qi to overact, stagnating fluids and grains. Chronic resentment causes Qi stagnation. Since the Liver generates Wind and governs Anger (which causes Qi rebellion), Cold Phlegm rises with rebellious Qi, causing severe disease. Symptoms include precordial discomfort, a sensation of an object rising to the throat, fainting, cold extremities, followed by recovery. Treatment requires emetic medicines. The expelled phlegm is clear as water and cold as snow. After evacuation, harmonize the Zang-Fu Qi according to the pathology.
Fourth is Disease Phlegm and Saliva (Bing Xian). Caused by consuming hard-to-digest foods damaging Spleen Qi, combined with anger damaging Heart/Liver Qi, or residual toxins from severe illnesses lodging in Zang-Fu. Qi becomes stagnant and turbid, unable to circulate freely, leading to phlegm accumulation. Interaction between phlegm and stagnant Qi causes pain. Precordial pain persists for years if mild, or causes rapid death if severe. Severity depends on phlegm quantity. Treatment uses laxatives/emetics based on severity. Mild cases yield oily phlegm; severe cases yield white-glue-like phlegm. Post-evacuation, clear Zang-Fu Qi and tonify Righteous Qi to restore balance.
Fifth is Deficiency Phlegm and Saliva (Xu Xian). Caused by constitutional Qi deficiency, exacerbated by Cold/Raw foods after severe illness or excessive lust during convalescence. Zang-Fu Qi becomes empty and weak, with deficiency-Heat steaming upward from bones. Upper Qi appears Excess, Lower Qi Deficient. Yin and Yang fail to interact. Unsmooth Qi blocks the Middle Jiao, accumulating Deficiency Phlegm. Wind-Heat attack causes phlegm to rush upward. Initial symptoms include mouthfuls of clear saliva, sensation of rising object, throat tightness, fainting, chaotic hand movements, scalp itching, and umbilical pain. Recovery follows when Qi descends. Treatment uses mild laxatives (half dose) at onset due to weak Stomach Qi; full emetics are contraindicated. If unsuccessful, use modified Wind-Phlegm remedies. Apply moxibustion to Qi Hai (CV-8) to guide phlegm down to the Stomach. Then harmonize Zang-Fu, tonifying deficiency and draining excess to balance Upper and Lower Qi. If pulse is fine and Large Intestine is Cold, reduce Liver Qi and tonify Stomach Qi. In children, this is purely Stomach Qi deficiency; moxibustion on Qi Hai warms the Spleen/Stomach to cure the phlegm. Avoid harsh Wind-Phlegm drugs.
Sixth is Toxic Phlegm and Saliva (Du Xian). Seen in Yang-Toxic Shang Han (Cold Damage) where Liver, Heart, Spleen, and Lung are affected by epidemic toxicity. Toxic phlegm accumulates centrally. Symptoms include constipation with heat, yellow/scanty urination, dark-red complexion, whole-body fever, drowsiness resembling intoxication, delirium, and unconsciousness. All these stem from phlegm. Pulse is deep and hidden, felt only with heavy pressure near the bone. This is Epidemic Toxic Phlegm filling the chest, hiding the pulse characteristics. Treatment urgently employs dispersing and transforming medicines to extract toxic vapors and purge phlegm. Medicines must address Heart, Liver, Spleen, and Lung, prioritizing the Liver.
Although phlegm diseases transform in thousands of ways, the above examples cover the basics. Future students should deduce further with clear insight to ensure accurate diagnosis and treatment, eliminating the threat of phlegm as a major affliction.