要略云四饮者悬饮留饮支饮痰饮是也其人素盛今瘦水走肠间沥沥有声谓之痰饮饮后水流
在胁
下咳唾引痛谓之悬饮饮水流于四支当汗出而不汗身体重痛谓之溢饮咳逆倚息短气不得卧其形
如肿谓之支饮又有留饮者背寒如手大或短气而渴四支历节疼胁下痛引缺盆咳嗽则转甚又有伏
饮者膈满呕吐喘咳发则寒热腰背痛目泪出其人振振恶寒身 惕病溢饮者当发其汗悬饮者法当
下之痰饮者当以温药和之
按古方谓四饮生六证者即四饮加伏饮留饮也或云五饮者即留饮伏饮合为一证也三因为痰
饮用
温药从小便去之支饮则随证汗下以补四饮之治法愚尝观仲景治饮诸方之意在表者汗之在里者
下之挟湿则分利之寒热温凉随其所属以治之何必拘此四证
陈无择云人之有痰饮者由荣卫不清气血浊败凝结而成也内则七情汨乱脏气不行郁而生涎
涎结
为饮为内所因外则六淫侵冒玄府不通当汗不泄蓄而为饮为外所因或饮食过伤色欲无度运动失
宜津液不行聚为痰饮属不内外因其为病也为喘为咳为呕为泄为眩晕嘈 忪悸 KT 寒热疼痛肿
满挛癖癃闭痞膈如风如癫未有不由痰饮所致
按此分三因为病之状至为切当而其论中所引三因之药有外因而用里药者有内因而用表药
者其意详见方后论中
严氏云人之气道贵乎顺顺则津液流通决无痰饮之患古方治饮用汗下温利之法愚见不若以
顺气为先分导次之气顺则津液流通痰饮运下自小便中出矣
按严氏谓气顺则痰自下之说盖以人之七情郁结气滞生涎聚为痰饮治者能使气道通利则痰
自降
下也然有病患元有痰积其气因痰而结滞者岂但理气而痰能自行耶必先逐去痰结则滞气自行岂
可专主一说又云人身无倒上之痰天下无逆流之水此乃齐东之语夫水性润下搏而跃之则可使过
颡痰性顺下被火泛上亦可至巅今庸医莫察其义又每口诵以语人良可悲夫
《金匮要略》中说,所谓的“四饮”,是指悬饮、留饮、支饮和痰饮。如果一个人平时身体肥胖,现在却消瘦,水液在肠间流动发出沥沥的声音,这叫做痰饮;饮水后水流停留在胁下,咳嗽吐唾时牵引疼痛,这叫做悬饮;水饮流注于四肢,本该出汗却不出汗,身体沉重疼痛,这叫做溢饮;咳嗽气逆,需要倚靠物体呼吸,气短不能平卧,身形浮肿,这叫做支饮。另外还有留饮,表现为背部寒冷如手掌大小,或者气短且口渴,四肢关节疼痛,胁下疼痛牵引至缺盆穴,咳嗽时症状加重。还有伏饮,表现为胸膈胀满、呕吐、气喘咳嗽,发作时伴有寒热、腰背痛、流泪,病人身体颤抖、恶寒战栗。对于溢饮,应当用发汗的方法治疗;对于悬饮,依法应当用攻下的方法治疗;对于痰饮,应当用温性的药物调和治疗。
按:古代方书称“四饮”产生六种证候,即是在四饮的基础上加上伏饮和留饮。或者说“五饮”,是将留饮和伏饮合并为一个证候。这三种病因(指内因、外因、不内外因)中,痰饮使用温药从小便排出;支饮则根据证候采用发汗或攻下的方法,以补充四饮的治疗法则。我曾观察张仲景治疗水饮的各种方剂,其意旨在于:病邪在表者用发汗法,在里者用攻下法,兼夹湿邪者用分利小便法,寒热温凉随其所属脏腑经络而治之。何必拘泥于这四种证候呢?
陈无择说:人之所以有痰饮,是因为营卫不清,气血浊败凝结而成。在内,由于七情扰乱,脏气运行不畅,郁结而生涎,涎凝结成为饮,这是内因;在外,由于六淫侵袭,玄府(汗孔)不通,应当出汗而不能发泄,蓄积成为饮,这是外因;或者饮食过度损伤,色欲无度,运动失宜,导致津液不行,聚集成痰饮,属于不内外因。它作为疾病的表现,会导致喘、咳、呕、泄、眩晕、嘈杂、心悸、寒热、疼痛、肿胀、满闷、挛缩、癖块、癃闭、痞膈等病症,如同风邪、癫狂一样,没有不是由痰饮所导致的。
按:这里将三因与病症状态区分开来,非常恰当。但其论述中所引用的针对三因的药物,有的针对外因而使用治里的药,有的针对内因而使用治表的药,其详细意图见方后的论述中。
严氏说:人的气道贵在顺畅,顺畅则津液流通,绝不会患痰饮。古方治疗水饮采用汗、下、温、利的方法。我认为不如以顺气为先,其次进行分消导滞。气顺则津液流通,痰饮运化下行,自然从小便中排出。
按:严氏所说的“气顺则痰自降”的说法,大概是因为人的七情郁结导致气滞生涎,聚为痰饮。治疗者如果能使得气道通利,则痰自然降下。然而,有些病人原本就有痰积,气因为痰而结滞,难道仅仅理顺气机,痰就能自行消除吗?必须先祛除痰结,滞气才能自行通畅。怎么能专门坚持一种说法呢?又说“人身没有倒向上流的痰,天下没有逆流的水”,这完全是齐东野老之语。水的本性是润下,拍打跳跃它,可以使它越过颡部;痰的性质也是顺下,被火熏蒸上泛,也可以到达头顶。现在的庸医不明白其中的道理,却常常口诵这句话告诉别人,实在可悲啊。
The *Jin Gui Yao Lue* (Essential Prescriptions of the Golden Cabinet) states that the so-called "Four Types of Fluid Retention" (*Si Yin*) refer to Suspended Fluid Retention (*Xuan Yin*), Lingering Fluid Retention (*Liu Yin*), Branch Fluid Retention (*Zhi Yin*), and Phlegm-Fluid Retention (*Tan Yin*). If a person who was previously obese now becomes emaciated, and fluid flows in the intestines making a gurgling sound, this is called Phlegm-Fluid Retention (*Tan Yin*); if after drinking water, the fluid stays in the hypochondrium and coughing or spitting induces pain, this is called Suspended Fluid Retention (*Xuan Yin*); if fluid flows into the four limbs, sweating should occur but does not, resulting in heavy and painful body, this is called Overflowing Fluid Retention (*Yi Yin*); if there is coughing with air rushing upward, reliance on leaning objects for breathing, shortness of breath preventing lying flat, and swelling resembling edema, this is called Branch Fluid Retention (*Zhi Yin*). Additionally, there is Lingering Fluid Retention (*Liu Yin*), characterized by coldness in the back the size of a hand, or shortness of breath with thirst, pain in the four limbs and joints, pain in the hypochondrium radiating to the *Quepen* (LI 15) acupoint, and worsening symptoms upon coughing. There is also Hidden Fluid Retention (*Fu Yin*), characterized by fullness and vomiting in the diaphragm, wheezing and coughing, accompanied by alternating chills and fever, lower back pain, and tearing upon attack, with the patient trembling and experiencing aversion to cold. For Overflowing Fluid Retention (*Yi Yin*), the method should be to induce sweating; for Suspended Fluid Retention (*Xuan Yin*), according to the law, purgation should be used; for Phlegm-Fluid Retention (*Tan Yin*), warm herbs should be used to harmonize it.
Commentary: Ancient formularies state that the "Four Types of Fluid Retention" generate six syndromes, which are the Four Types plus Hidden and Lingering Fluid Retention. Or some say "Five Types," combining Lingering and Hidden Fluid Retention into one syndrome. Among the Three Causes (*San Yin*), Phlegm-Fluid Retention is treated with warm herbs to expel via urination; Branch Fluid Retention is treated with sweating or purgation depending on the syndrome, supplementing the treatment methods for the Four Types. I have observed Zhang Zhongjing's various formulas for treating fluid retention; his intent is: for pathogens in the exterior, use sweating; for those in the interior, use purgation; for those complicated with dampness, use diuresis; and treat according to cold, heat, warmth, or coolness based on their affiliation. Why must one adhere strictly to these four syndromes?
Chen Wuze stated: The reason humans have phlegm-fluid retention is due to unclear Ying and Wei (Nutritive and Defensive Qi), turbid and deteriorated blood and Qi condensing. Internally, due to the disturbance of the Seven Emotions (*Qi Qing*), Zang-Fu Qi fails to circulate, leading to stagnation and generation of saliva, which condenses into fluid retention; this is an Internal Cause (*Nei Yin*). Externally, due to invasion by the Six Evils (*Liu Yin*), the Xu Fu (pores) are blocked, preventing necessary sweating, causing accumulation into fluid retention; this is an External Cause (*Wai Yin*). Or, due to excessive dietary injury, immoderate sexual activity, or improper movement, leading to stagnant Jin Ye (Body Fluids) gathering into phlegm-fluid retention; this belongs to the Neither-Internal-Nor-External Cause (*Bu Nei Wai Yin*). As a disease manifestation, it causes wheezing, coughing, vomiting, diarrhea, dizziness, heartburn, palpitations, chills and fever, pain, swelling, fullness, spasms, masses, strangury, epigastric blockage, etc., similar to wind pathogens or mania, none of which do not originate from phlegm-fluid retention.
Commentary: Distinguishing the Three Causes from the manifestations of disease here is very appropriate. However, in his discussion, the medicines cited for the Three Causes include using interior-treating drugs for external causes, and exterior-treating drugs for internal causes; the detailed intent is found in the discussions following the formulas.
Yan Shi stated: The human Qi mechanism values smoothness; if smooth, Jin Ye circulates freely, and there will be no affliction of phlegm-fluid retention. Ancient formulas treat fluid retention using sweating, purgation, warming, and draining methods. In my opinion, it is better to prioritize regulating Qi, followed by separating and guiding stagnation. When Qi is smooth, Jin Ye circulates, and phlegm-fluid retention transforms and descends, naturally exiting through urination.
Commentary: Yan Shi's statement that "when Qi is smooth, phlegm descends" seems to imply that since the stagnation of the Seven Emotions leads to Qi stagnation generating saliva and gathering into phlegm-fluid retention, if the healer can make the Qi mechanism unobstructed, the phlegm will descend naturally. However, some patients originally have phlegm accumulation, where Qi is obstructed *because* of the phlegm. Can simply regulating Qi make the phlegm disappear on its own? One must first expel the phlegm accumulation, then the obstructed Qi will flow freely. How can one exclusively adhere to one viewpoint? Furthermore, saying "there is no upward-flowing phlegm in the human body, nor reverse-flowing water in the world" is merely nonsense from the eastern suburbs of Qi. Water nature is moistening and downward; if beaten or leaped at, it can splash over the forehead. Phlegm nature is also downward; if steamed up by fire, it can reach the vertex. Modern mediocre physicians fail to understand this meaning, yet often recite this phrase to others, which is truly pitiable.