三阳合病脉浮大上关上但欲眠睡目合则汗
太阳传阳明少阳阳明腑病而太少之经邪未解是为三阳合病太阳之脉浮阳明之脉大胆气候于左关胃气候于右关胆胃不
降二气逆行故脉上关上胆热则甲木克土土气困乏故欲眠睡平人寐则阳气内蛰三阳合病阳盛于外寐时阳气不敛郁蒸而开皮
毛故目合则汗也
脉阳微而汗出少者为自和也汗出多者为太过阳脉实因发其汗多出者亦为太过太过为阳绝于里亡津液大便因硬也
脉阳微(寸为阳)而汗出少是阳不亢而津未耗故为自和阳脉实而汗出多是阳既亢而津又泄故为太过阳绝于里者极盛
而无其匹也
脉浮而芤浮为阳芤为阴浮芤相抟胃气生热其阳则绝
浮者阳盛而不藏也芤者阴虚而内空也(外实中空谓之芤)浮芤相合阳亡阴枯定以胃气生热其阳独绝而无伦也
发汗不解腹满痛者急下之宜大承气汤
发汗不解是非表证乃胃阳之实也汗之愈亡其阴燥屎阻其胃火伤及太阴故腹满而痛阳亢阴亡则成死证故当急下之 此
下三章与少阴急下三章彼此互文是阳明之阳亢而伤阴者阳未盛而下早则亡其阳阳已亢而下迟则亡其阴故有缓攻之法又有
急下之条 此与少阴六七日腹胀不大便章义同
三阳合病,脉象浮大且搏动上至关部以上,患者只想睡觉,眼睛一闭就会出汗。
这是太阳经邪气传入阳明、少阳,阳明腑实病变形成,而太阳和少阳的经络邪气尚未解除,这称为三阳合病。太阳经的脉象表现为浮;阳明经的脉象,胆气的气机显现于左关部,胃气的气机显现于右关部。胆与胃的气机不降,导致两股气机逆行上升,所以脉搏搏动上至关部以上。胆有热邪,则甲木(胆)克制脾土,导致土气困乏无力,所以患者想睡觉。普通人睡眠时,阳气内藏蛰伏;但在三阳合病的情况下,阳气在体表过盛,睡眠时阳气不能收敛,郁结蒸腾而打开皮毛腠理,所以眼睛一闭就会出汗。
如果脉象寸口部(阳部)微弱,且出汗较少,这是病情自我调和的表现;如果出汗过多,则是治疗太过或病情过重。如果脉象寸口部坚实有力,是因为发汗过度导致出汗多,这也属于太过。所谓“太过”,是指阳气在体内极度亢盛而孤立无匹,导致津液亡失,大便因此变得干硬。
脉象浮而芤(中空)。浮脉主阳盛,芤脉主阴虚。浮脉与芤脉相搏结,导致胃气产生热邪,其阳气就会断绝。
浮脉代表阳气盛而不能潜藏;芤脉代表阴血虚而内部空虚(外部充实中间空豁称为芤)。浮脉与芤脉相结合,意味着阳气外亡、阴液枯竭,必然导致胃气生热,其阳气独自断绝而无与伦比。
经过发汗治疗后病证未解,出现腹部胀满疼痛,应当紧急使用攻下法,适宜用大承气汤。
发汗后病证未解,说明这不是表证,而是胃中阳热实证。发汗会进一步耗伤阴液,燥屎阻滞,胃火损伤太阴脾土,所以出现腹部胀满和疼痛。阳气亢盛、阴液亡失会导致死亡,所以应当紧急攻下。这三章内容与少阴病急下证的三章内容互为补充:如果是阳明病阳气亢盛而损伤阴液,阳气尚未极盛时就过早攻下,会亡失阳气;如果阳气已经亢盛却攻下太迟,会亡失阴液。因此既有缓攻的方法,又有急下的条文。这与少阴病篇中“六七日腹胀不大便”一章的意义相同。
阳明病,出现发热、出汗多的症状,应当紧急使用攻下法,适宜用大承气汤。
肾主管五液,进入心脏化为汗液。发热且出汗多,会导致肝木枯槁、脾土干燥,进而损伤少阴肾水,所以应当紧急攻下。这与少阴病篇中“口燥咽干”一章的意义相同。
In combined disease of the three yang channels, the pulse is floating and large, rising above the Guan position; the patient desires sleep, and sweating occurs when the eyes are closed.
This occurs when pathogenic factors from the Taiyang channel transmit to the Yangming and Shaoyang channels. The Yangming fu-organ pathology has formed, yet the pathogenic factors in the Taiyang and Shaoyang channels have not been resolved; this is termed combined disease of the three yang channels. The pulse of the Taiyang channel manifests as floating; regarding the Yangming channel, the Qi of the Gallbladder (Dan) presents at the left Guan position, and the Qi of the Stomach (Wei) presents at the right Guan position. Because the Qi of the Gallbladder and Stomach fails to descend, the two qi mechanisms reverse and ascend, causing the pulse to rise above the Guan position. Heat in the Gallbladder causes Jia Wood (Gallbladder) to overact on Earth (Spleen/Stomach), leaving the Earth qi exhausted and weak, hence the desire for sleep. In healthy individuals, during sleep, Yang Qi is stored internally. However, in combined disease of the three yang channels, Yang Qi is excessive on the exterior. During sleep, Yang Qi cannot be contained; it stagnates, steams, and opens the skin and hair pores, resulting in sweating when the eyes are closed.
If the pulse at the Yang position (Cun/Inch) is faint and sweating is slight, this indicates self-harmonization. If sweating is excessive, it indicates excess or over-treatment. If the pulse at the Yang position is solid, and sweating is profuse due to excessive diaphoresis, this also indicates excess. "Excess" here refers to Yang Qi being extremely hyperactive within the interior without opposition, leading to the loss of body fluids and consequent hardening of the stool.
The pulse is floating and Kou (hollow). Floating indicates Yang excess; Kou indicates Yin deficiency. When floating and Kou pulses interact, stomach Qi generates heat, and its Yang Qi becomes severed.
Floating indicates Yang excess failing to store; Kou indicates Yin deficiency with internal emptiness (external fullness with central hollowing is called Kou). The combination of floating and Kou signifies the external loss of Yang and the exhaustion of Yin, inevitably leading to stomach heat generation and the solitary severance of Yang Qi.
If the condition remains unresolved after inducing sweating, accompanied by abdominal fullness and pain, urgent purgation is required; Da Cheng Qi Tang (Major Order the Qi Decoction) is indicated.
Unresolved condition after sweating indicates this is not a exterior syndrome, but an excess of Yang heat in the Stomach. Sweating further depletes Yin; dry feces obstruct, and stomach fire injures the Taiyin Spleen, causing abdominal fullness and pain. Hyperactive Yang and depleted Yin lead to death; therefore, urgent purgation is necessary. These three chapters correspond mutually with the three chapters on urgent purgation in Shaoyin disease: if Yang hyperactivity in Yangming injures Yin, purging too early before Yang peaks will cause loss of Yang; purging too late after Yang has peaked will cause loss of Yin. Thus, there are methods for gentle purgation and provisions for urgent purgation. This shares the same principle as the chapter in Shaoyin disease regarding "abdominal distension and inability to defecate after six or seven days."
In Yangming disease, if fever and profuse sweating occur, urgent purgation is required; Da Cheng Qi Tang (Major Order the Qi Decoction) is indicated.
The Kidney governs the five fluids, which transform into sweat upon entering the Heart. Fever with profuse sweating leads to the withering of Liver Wood and drying of Spleen Earth, subsequently injuring the Shaoyin Kidney water; therefore, urgent purgation is required. This shares the same principle as the chapter in Shaoyin disease regarding "dry mouth and throat."