当各随三阳本证。表药发之。发之表解。下利自愈。若不愈者。方可以利药治之。
太阳病下之其脉促。不结胸者。此为欲解也。
脉浮者必结胸。 脉紧者。必咽痛。
脉弦者。必两胁拘急。脉细数者。头痛不止。
脉沉紧。必欲呕。 脉沉滑者。胁热利。
脉浮滑者。必下血。
太阳病反下之。因而腹满时痛者。属太阴也。桂枝加芍药汤主之。至于大实痛者胃也。
桂枝加大黄汤主之。巳传戊妇告夫也。所以为里传表即名误下传也。
或问曰。伤寒杂证一体。若误下之。甚者变大。答曰。非一体
也。伤寒误下变无定体。杂病误下变有定体。何以然。伤寒自外而入阳也。阳主动。杂病自
内而出阴也。阴主静。动者犯之。其变无穷。静者犯之。其变止痞与腹胁痛而已。故变无穷
者为重。痞与腹胁痛者为轻也。
五苓散为下药。乃太阳里之下药也。太阳高则汗发之。下则引而竭之。
渴者邪入太阳本也。当下之。使从膀胱出也。
\r图\ps11a2.bmp\r
肾燥膀胱热。小便不利。此药主之。小便利者不宜用。然太阳病热而渴。小便虽利。亦
宜（五苓散）下之。
应当根据三阳经的本证进行治疗。使用解表药物发汗，待表证解除后，下利症状自然痊愈。如果下利仍未停止，才可以采用治疗下利的药物进行干预。
太阳病误用攻下法后，若脉象急促，且未形成结胸证，这是病情即将缓解的征兆。
若脉象浮，则必然形成结胸证。
若脉象紧，则必然出现咽痛。
若脉象弦，则必然两胁拘急不舒；若脉象细数，则头痛不止。
若脉象沉紧，则必然想要呕吐；若脉象沉滑，则出现胁部发热伴下利。
若脉象浮滑，则必然出现便血。
太阳病反而被误用攻下法，导致腹部胀满、间歇性疼痛的，属于太阴病范畴，应以桂枝加芍药汤为主治方剂。至于出现严重实痛（大实痛）的情况，则病位在胃（此处指阳明胃肠实证），应以桂枝加大黄汤为主治方剂。这好比戊土（胃）传变给己土（脾），告知妻子再告诉丈夫，意指病邪由表入里，这种因误下导致的传变称为“误下传”。
有人问道：伤寒与杂病本质是一体的吗？如果误用攻下法，严重的会转变为其他病症。回答说：它们并不是一体的。伤寒误用攻下法后，变证没有固定的形态；而杂病误用攻下法后，变证有固定的形态。为什么这样呢？伤寒病邪从外部侵入，属于阳证，阳主动；杂病病邪从内部发出，属于阴证，阴主静。动者（阳证）受到侵犯，其变化无穷无尽；静者（阴证）受到侵犯，其变化仅限于痞证和腹胁疼痛而已。因此，变化无穷的为重证，仅表现为痞证和腹胁疼痛的为轻证。
五苓散属于攻下药，是用于治疗太阳经里证的攻下药。太阳病在表高位的，应用发汗法解除；在里低位的，应用引导排泄法使邪气竭尽。
口渴是因为邪气深入太阳经本腑（膀胱）。此时应当用攻下法（利水渗湿），使邪气从膀胱排出。
[图片]
肾燥膀胱热，导致小便不利，此药主治。若小便通畅者不宜使用。然而，太阳病热盛而口渴，即使小便通畅，也适宜（使用五苓散）通过利水之法祛除邪气。
回答说：当服用（五苓散）而未服用，则谷气消减、水液流失，形体亡失，必然趋向于阳明燥火。戊土之胃发黄，因此出现调胃承气汤证。这是由于太阳病传入本腑时失去了及时攻下的机会所致，原因在于未曾服用五苓散。
Treatment should follow the primary syndromes of the three Yang meridians. Administer exterior-releasing medications to induce sweating; once the exterior syndrome is resolved, the diarrhea will heal spontaneously. If it does not resolve, only then can medications for treating diarrhea be used.
If a Taiyang disease (Taiyang Syndrome) is mistakenly treated with purgation and the pulse becomes rapid (Cu Mai), without forming Jie Xiong (Chest Binding), this indicates that the condition is about to resolve.
If the pulse is floating (Fu Mai), Jie Xiong (Chest Binding) will definitely form.
If the pulse is tight (Jin Mai), throat pain will definitely occur.
If the pulse is wiry (Xian Mai), bilateral hypochondriac stiffness and urgency will definitely occur; if the pulse is fine and rapid (Xi Shu Mai), headache will persist incessantly.
If the pulse is deep and tight (Chen Jin), vomiting will definitely be desired; if the pulse is deep and slippery (Chen Hua), heat in the hypochondrium with diarrhea will occur.
If the pulse is floating and slippery (Fu Hua), hematochezia (blood in stool) will definitely occur.
If Taiyang disease is mistakenly subjected to purgation, resulting in abdominal fullness and intermittent pain, it belongs to the Taiyin (Taiyin Syndrome) category. Guizhi Jia Shaoyao Tang (Cinnamon Twig Decoction plus Peony Root) should be the primary treatment. As for cases of severe solid pain (Da Shi Tong), the pathology lies in the Stomach (referring to Yangming excess-heat/stagnation). Guizhi Jia Dahuang Tang (Cinnamon Twig Decoction plus Rhubarb) should be the primary treatment. This analogy describes the transmission from Wu Earth (Stomach) to Ji Earth (Spleen), informing the wife then the husband, signifying pathogenic factors transmitting from exterior to interior due to mistaken purgation, termed "transmission due to mistaken purgation."
A question was asked: Are Shanghan (Cold Damage) and Zaben (Miscellaneous Diseases) essentially one entity? If mistakenly purged, severe cases transform into other conditions. The answer is: They are not one entity. When Shanghan is mistakenly purged, the transforming syndromes have no fixed form; when Zaben is mistakenly purged, the transforming syndromes have a fixed form. Why is this? Shanghan pathogens enter from the exterior and belong to Yang; Yang is dynamic. Zaben pathogens emerge from the interior and belong to Yin; Yin is static. When the dynamic (Yang) is violated, its transformations are infinite. When the static (Yin) is violated, its transformations are limited only to Pi (Glomus/Fullness) and abdominal/hypochondriac pain. Therefore, infinite transformations indicate a severe condition, while Pi and abdominal/hypochondriac pain indicate a mild condition.
Wuling San (Five-Ingredient Powder with Poria) belongs to purgative medications and is specifically a purgative for Taiyang Interior syndromes. For Taiyang diseases located high in the exterior, sweating should be induced to release them; for those located low in the interior, guiding methods should be used to exhaust them.
Thirst occurs because pathogens have entered the root organ of the Taiyang meridian (the Bladder). At this point, purgation (specifically diuresis/drainage) should be employed to allow pathogens to exit via the Bladder.
[Image]
Dryness in the Kidney and Heat in the Bladder causing difficult urination are primarily treated by this formula. It is not suitable if urination is already free. However, in Taiyang disease with heat and thirst, even if urination is free, it is still appropriate to use Wuling San (Five-Ingredient Powder with Poria) to drain the pathogens via diuresis.
The answer states: If the medication should have been taken but was not, grain essence will dissipate, water fluids will depart, and the physical form will perish, inevitably leading towards Yangming Dryness-Fire. The Wu Earth (Stomach) may manifest as jaundice, thus presenting the Zhengwei Chengqi Tang (Regulate the Stomach Decoction) syndrome. This results from failing to apply purgation when Taiyang disease transmitted to its root organ, specifically because Wuling San was not administered.