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Chapter 5 of 9
温病条辩
The Middle Energizer chapter follows the Upper Energizer chapter, focusing on the patterns of differentiation and treatment after warm disease pathogens transmit from the lung-defense level to the spleen and stomach. The entire chapter centers on Yangming warm disease as its main thread, while also discussing summer-heat warmth, latent summer-heat, cold-dampness, and dampness warmth, with appended sections on malaria, dysentery, jaundice, bi syndrome (arthralgia), and autumn dryness. The core principle is: warm-heat pathogens entering the middle energizer tend to transform heat through Yangming, requiring the approaches of clearing heat, promoting bowel movement, and preserving body fluids; dampness-turbidity pathogens entering the middle energizer tend to trap the Taiyin spleen earth, requiring the approaches of diffusing transformation, separate elimination, and warming movement.
This chapter holds that after warm-heat pathogens such as wind warmth, warm heat, pestilence, warm toxin, and winter warmth transmit into the middle energizer, they mainly manifest as Yangming channel heat or Yangming bowel excess. Patients commonly present with red complexion and sclera, heavy and turbid voice, coarse breathing, constipation, scanty and difficult urination, dried yellow tongue coating or even black with thorny protrusions, preference for cold over heat, and worsening of symptoms in the afternoon. If the pulse is floating, surging, and agitated, it indicates that heat pathogen is still relatively superficial and purging should not be used; instead, Baihu Tang (White Tiger Decoction) should clear and release the vexing heat. If the pulse is deep, forceful, and replete, it indicates heat binding internally, and only then may Dachengqi Tang (Major Order the Qi Decoction) be used to purge. Since warm diseases primarily damage yin, purging must stop as soon as the pathogen is eliminated, always preserving body fluids. For yin deficiency with constipation, use Zengye Tang (Increase Fluids Decoction)—"increasing water to move the boat." For those with righteous qi deficiency accompanied by constipation, use Xinjia Huanglong Tang (Newly Augmented Yellow Dragon Decoction) and similar formulas to support the righteous and purge. For cases of "purging but not resolving" due to failure of lung qi to descend, intense heat in the small intestine, closure and obstruction of the pericardium, or exhaustion of fluids, corresponding combined treatment strategies are applied respectively. Summer-heat warmth, dampness warmth, and cold-dampness focus mainly on restoring qi transformation of the triple energizer—either clearing heat and transforming dampness, or warming yang and transforming dampness. Post-purging recuperation emphasizes no heavy eating and no repeated purging, prioritizing preservation of stomach yin.
Paraphrase: Facial and scleral redness, heavy and turbid voice, coarse breathing in both inhalation and exhalation, constipation, scanty and difficult urination, tongue coating that is old yellow or even black with thorny protrusions, fear of heat but not cold, worsening in the afternoon—this constitutes Yangming warm disease as warm-heat enters the middle energizer. If the pulse is floating, surging, and markedly agitated, employ Baihu Tang. If the pulse is deep, rapid, and forceful, or even thin yet replete, employ Dachengqi Tang. Summer-heat warmth, dampness warmth, and warm malaria are not included in this category.
Core Principles: The Yangming channel traverses the face; when heat pathogen is exuberant, there is facial redness and red eyes. When lung metal is scorched by fire, the voice becomes heavy and turbid. Heat binding in the gastrointestinal tract produces constipation. Old yellow tongue coating with black thorny protrusions indicates extreme heat. Absence of chills with aversion to heat indicates the disease has already departed from the exterior and entered the interior. A floating and surging pulse suggests the pathogen is still near the surface, so purging is not appropriate; Baihu Tang clears and disseminates. A deep and replete pulse suggests the pathogen has already bound internally, and only then is Dachengqi Tang appropriate for attacking downward. This embodies the principle of "following wherever the pathogen resides, expelling the pathogen by the nearest route."
Paraphrase: In Yangming warm disease without upper energizer symptoms, if there has been no bowel movement for several days, purging should be considered. However, if the patient has chronically insufficient yin fluids, Chengqi Tang must not be used; instead, employ Zengye Tang. After administration, observe for twelve hours; if there is still no bowel movement, combine with Tiaowei Chengqi Tang to gently harmonize stomach qi.
Core Principles: Constipation results from two causes: heat binding or fluid desiccation. For replete heat binding patterns, use Chengqi. For semi-deficient, semi-replete patterns of yin depletion and fluid exhaustion, use Zengye Tang—using a tonic substance for purgative purposes, embedding purgation within supplementation. "Increasing water to move the boat" represents the thought of preserving body fluids in warm disease.
Paraphrase: In Yangming warm disease where purging has been applied but bowel movement remains obstructed, there are five causes and corresponding treatments: those in whom righteous qi is too deficient to transport medication use Xinjia Huanglong Tang; those with failure of lung qi to descend, copious phlegm and saliva, and a replete right-cun pulse use Xuanbai Chengqi Tang; those with intense heat in the small intestine, painful red urine, and a firm and sunken left-chi pulse use Daochi Chengqi Tang; those with heat closing the pericardium, impaired consciousness, and shortened tongue use Niuhuang Chengqi Tang; those with insufficient fluids, "boat grounded for lack of water," use Zengye Chengqi Tang.
Core Principles: These respectively embody the combined treatment of pathogen and righteous qi, combined treatment of lung and bowel viscera, simultaneous treatment of the two intestines, combined treatment of the two lesser yin channels, and combined treatment of qi and blood. This demonstrates that the "purging method" is not simply about promoting bowel movements—one must identify the cause of obstruction and address righteous qi, lung qi, small intestine, pericardium, and yin fluids accordingly.
Paraphrase: Wind warmth, warm heat, pestilence, warm toxin, and winter warmth in the middle energizer predominantly involve Yangming disease; dampness warmth in the middle energizer predominantly involves Taiyin disease; summer-heat warmth affects Yangming and Taiyin equally.
Core Principles: Warm-heat types belong to fire, and fire joins with Yangming's yang earth, thus mostly producing Yangming heat patterns. Dampness warmth belongs to dampness, and dampness joins with Taiyin's yin earth, thus mostly producing spleen-dampness patterns. Summer-heat warmth combines both dampness and heat, so it involves both. This is the general outline of middle energizer warm disease.
Modified Zhengqi Powder Series (Jiajian Zhengqi San): Based on different manifestations of dampness stagnant in the triple energizer, use Huoxiang (patchouli), Houpo (magnolia bark), Chenpi (tangerine peel), Fuling (poria) and other aromatic dampness-transforming, middle-energizer-dredging medicinals, adding Xingren (apricot kernel), Huashi (talcum), Caoguo (tsaoko), Shenqu (medicated leaven), etc., reflecting the method of "separate elimination and dissipating drainage."
Xuanbi Tang (Dispel Obstruction Decoction): When dampness-heat accumulates in the channels and collaterals, manifesting as chills and high fever, painful joints, gray tongue and yellow sclera, use Fangji (stephania root), Xingren, Huashi, Lianqiao (forsythia), Shanzhi (gardenia fruit), Yiyiren (coix seed), Banxia (pinellia), Cansha (silkworm feces), etc., to clear dampness-heat and unblock the channels and collaterals.
Cold-dampness: Cold-dampness damages spleen yang, presenting as focal distention, anorexia, abdominal distension, diarrhea, cold extremities, and white slippery tongue. Use Banling Tang, Siling Jia Houpo Qinpi Tang, Lizhong Tang, Sini Tang, and similar formulas to warm yang and transform dampness. The ancients held that cold-dampness most injures yang qi, so the therapeutic approach focuses primarily on warming and unblocking.
Paraphrase: After purging and heat subsides, food must not be consumed immediately, or the disease will easily recur; after twelve hours, begin with small amounts of thin, bland food but do not eat to fullness, as satiety will cause recurrence with greater severity. After purging, when the pulse is calm, the body is cool, and fluids have returned to the tongue, even if there is no bowel movement for ten or more days, use moistening nourishment such as Yiwei Tang (Boost the Stomach Decoction) or Zengye-type formulas. Do not use Chengqi again. If attack and purging are carelessly used again, it will damage yin and injure the spleen, resulting in cough, diarrhea, intensified thirst, and possibly prolonged and difficult recovery.
Core Principles: This emphasizes that during the convalescent phase of warm disease, "preserving fluids and protecting the spleen and stomach" is more important than attacking the pathogen. After heat subsides, residual pathogen remains; heavy or rich diet will rekindle the pathogenic fire. When intestinal fluids have not yet recovered, absence of bowel movement should not be treated with forced purgation.
The essential medical principles of the Middle Energizer chapter can be summarized as:
Value: The Middle Energizer chapter systematically presents the dynamic pattern differentiation during the middle phase of warm disease. Principles such as "preserving body fluids," "protecting the spleen and stomach," "separating and dissipating dampness-heat," and "stopping once the pathogen is resolved" still hold academic value for modern TCM warm disease studies and recovery-phase management of infectious diseases.
Historical Limitations: Some disease names such as "warm toxin causing pox eruptions," "Yangmei sores (syphilitic lesions)," and "warm malaria" are descriptions under historical conditions and cannot be directly equated with specific modern infectious diseases. Some prognoses such as "death within one hundred days" belong to observations of that era and should not serve as basis for contemporary judgment. Dosage and processing methods of formulas exhibit epochal differences and must be scrutinized under modern safety standards.
—— Compiled by Bu Gua
This content is based on classic TCM literature and is provided solely for traditional culture study and research. It does not constitute any medical diagnosis, medication, or treatment advice. If you feel unwell, please seek medical attention promptly.