里证下后，脉浮而微数，身微热，神思或不爽，此邪热浮于肌表，里无壅滞也。
虽无汗，宜白虎汤，邪从汗解。若大下后或数下后，脉空浮而数，按之豁然如无，宜白虎汤加
人参，覆杯则汗解。下后脉浮而数，原当汗解，迁延五六日脉证不改，
仍不得汗者，以其人或自利经久，或素有他病先亏，或本病日久不痊，或反复数下，以致周
身血液枯涸，故不得汗，白虎辛凉除肌表散漫之热邪，加人参以助周身之血液，于是经络润
泽，元气鼓舞，腠理开发，故得汗解。
里证脉沉而数，下后脉浮者，当得汗解。今不得汗，后二三日，脉复沉者，膜原
余邪复瘀到胃也，宜更下之。更下后，脉再浮者，仍当汗解，宜白虎汤。
里证下后，脉不浮，烦渴减，身热退，越四五日复发热者，此非关饮食劳复，乃
膜原尚有余邪隐匿，因而复发，此必然之理。不知者每每归咎于病患，误也。宜再下之即愈
。但当少与，慎勿过剂，以邪气微也。
应下之证，下后当脉静身凉，今反发热者，此内结开，正气通，郁阳暴伸也。即
如炉中伏火，拨开虽焰，不久自息，此与下后脉反数义同。若温疫将发，原当日渐加热，胃
本无邪，误用承气，更加发热，实非承气使然，乃邪气方张，分内之热也。但嫌下早之误，
徒伤胃气耳。日后传胃，再当下之。又有药烦者，与此悬绝，详载本条。
After purgation for interior syndromes, if the pulse is floating and slightly rapid, with slight fever and mental cloudiness, this indicates pathogenic heat floating on the muscle surface (muscle layer), with no obstruction in the interior.
Although there is no sweating, Baihu Tang (White Tiger Decoction) should be used to resolve the pathogen through sweating. If after severe or multiple purgations, the pulse is empty, floating, and rapid, feeling hollow upon deep pressure as if absent, Ren Shen (Ginseng Radix et Rhizoma) should be added to Baihu Tang; sweating will occur shortly after taking the medicine. If the pulse is floating and rapid after purgation, it originally should have been resolved by sweating. If five or six days pass without change in pulse and symptoms, and sweating still does not occur, it is because the patient may have had chronic diarrhea, pre-existing deficiency from other diseases, prolonged illness without recovery, or repeated purgations, leading to exhaustion of blood throughout the body. Thus, sweating cannot occur. The acrid-cool herbs in Baihu Tang clear the diffuse heat on the muscle surface; adding Ren Shen (Ginseng Radix et Rhizoma) assists the blood throughout the body. Consequently, the meridians become moistened, Yuan Qi (Original Qi) is stimulated, and the Cou Li (skin pores and interstices) open, allowing resolution through sweating.
If the interior syndrome presents with a deep and rapid pulse, which becomes floating after purgation, sweating should resolve the condition. If sweating does not occur now, and after two or three days the pulse returns to being deep, residual pathogens from the Mo Yuan (Membrane Source) have re-stagnated in the Stomach. Another purgation is indicated. After subsequent purgation, if the pulse becomes floating again, it should still be resolved by sweating, using Baihu Tang (White Tiger Decoction).
After purgation for interior syndromes, if the pulse is not floating, irritability and thirst decrease, and fever subsides, but fever recurs after four or five days, this is not due to relapse from diet or overexertion. Rather, residual pathogens remain hidden in the Mo Yuan (Membrane Source), causing recurrence. This is an inevitable principle. Those who do not understand this often blame the patient, which is erroneous. Another purgation is appropriate for cure. However, the dose should be small, and excessive medication must be avoided, as the pathogenic factor is now weak.
For syndromes requiring purgation, the pulse should calm and the body cool after treatment. If fever persists instead, it indicates that internal stagnation has opened, Zheng Qi (Upright Qi) is unblocked, and constrained Yang suddenly extends. This is like embers in a stove: when stirred, flames rise briefly but extinguish soon after. This shares the same meaning as a rapid pulse appearing after purgation. If epidemic warmth is about to erupt, fever should gradually increase. If the Stomach originally lacks excess pathogens, misusing Chengqi Tang (Major Order the Qi Decoction) causes increased fever. This is not caused by Chengqi Tang (Major Order the Qi Decoction) itself, but rather by the flourishing pathogen and the inherent heat of the disease stage. The error lies only in premature purgation, which vainly damages Stomach Qi. When the pathogen later transmits to the Stomach, purgation can be performed again. There is also "medication-induced irritability" (Yao Fan), which is completely different from this scenario and is detailed in the relevant section.