仲景曰。微数之脉。慎不可灸。因火为邪。则为烦逆。追虚逐实。
血散脉中。火气虽微。内攻有力。焦骨伤筋。血难复也。常氏云。宜桂
枝去芍药加蜀漆牡蛎龙骨救逆汤。欲其有汗。宜柴胡桂枝汤。
又曰。脉浮。当以汗解。而反灸之。邪无从出。因火而盛。病从腰
以下必重而 。名为火逆。若欲自解。当先烦。乃有汗。随汗而解。何
以知之。脉浮。故知汗出当解。
又曰。火逆下之。因烧针烦躁者。桂枝甘草龙骨牡蛎汤主之。
又曰。脉浮热甚而灸之。此为实。实以虚治。因火而动。必咽燥
吐血。
又曰。伤寒脉浮。医以火迫劫之。亡阳惊狂。卧起不安者。桂枝
去芍药加蜀漆牡蛎龙骨救逆汤。
庞氏曰。灸及烧针之后证以火劫者。并宜火劫法治之。烦躁惊
及狂。用六石风引汤尤良。柴胡加龙骨牡蛎汤亦通用。
又曰。不当灸而误灸。令火邪入腹。干错五脏。重加烦死。雍曰。
凡火邪逆证者。宜桂枝甘草龙骨牡蛎汤。
仲景曰。烧针令其汗。针处被寒。核起而赤者。必发奔豚。气从
少腹上冲心者。灸其核上一壮。与桂枝加桂汤。更加桂。
又曰。少阴病。得之一二日。口中和。其背恶寒者。当灸之。
又曰。少阴病。吐利。手足不逆冷。反发热者。不死。脉不至者。
灸少阴七壮。雍曰。凡灸少阴下利诸证。皆兼服四逆汤。
又曰。少阴病。下利。脉微涩。呕而汗出。必数更衣。反少。当温
其上。灸之。一云。灸厥阴五十壮。（当灸百会）
又曰。诸下利。皆可灸足大都五壮。（一云七壮）商邱阴陵泉皆
三壮。
又曰。下利。手足厥无脉。灸之不温。脉不还。反微喘者死。少阴
负趺阳者为顺也。
又曰。伤寒脉促。手足厥逆。可灸之。为灸少阴厥阴。主逆。
庞氏曰。当灸不灸。令病患冷结。久而弥固。气冲心必死。
Zhang Zhongjing said: When the pulse is fine and rapid (Wei Shu), moxibustion must be strictly avoided. Because fire becomes a pathogenic factor, leading to irritability and rebellious qi. This approach pursues deficiency and drives out reality (excess), causing blood to scatter within the vessels. Although the fire energy appears slight, its internal attack is powerful, scorching bones and injuring sinews, making blood difficult to restore. Chang Shi stated that Guizhi Qu Shaoyao Jia Shujie Muli Longgu Jiuni Tang (Cinnamon Twig Decoction without Paeonia plus Fleeceflower Root, Oyster Shell, and Dragon Bone for Rescue from Reversal) is suitable. If sweating is desired, Chaihu Guizhi Tang (Bupleurum and Cinnamon Twig Decoction) is suitable.
It is also said: When the pulse is floating (Fu), the disease should be resolved by inducing sweating. However, if moxibustion is applied in error, the pathogen has no outlet to exit. Due to the fire, the pathogen becomes prosperous. The disease below the waist will definitely feel heavy and numb (Zhong Mu). This is named Fire Reversal (Huo Ni). If it is to resolve spontaneously, there must first be irritability, followed by sweating, and resolution follows the sweat. How do we know this? Because the pulse is floating, we know that sweating will lead to resolution.
It is also said: In cases of Fire Reversal treated incorrectly with purgation, where burning needles cause irritability, Guizhi Gancao Longgu Muli Tang (Cinnamon Twig, Licorice, Oyster Shell, and Dragon Bone Decoction) is the primary treatment.
It is also said: When the pulse is floating and heat is severe, applying moxibustion constitutes treating an excess condition as if it were deficient. Driven by fire, it will inevitably cause dry throat and hemoptysis (vomiting blood).
It is also said: In Shanghan (Cold Damage) with a floating pulse, if a doctor uses fire methods to force sweating, resulting in loss of Yang, fright, mania, and restlessness (sitting and lying down uneasily), Guizhi Qu Shaoyao Jia Shujie Muli Longgu Jiuni Tang (Cinnamon Twig Decoction without Paeonia plus Fleeceflower Root, Oyster Shell, and Dragon Bone for Rescue from Reversal) should be used.
Pang Shi said: After moxibustion or burning needles, if symptoms arise due to fire coercion, they should be treated according to the principles for fire-induced conditions. For irritability, fright, and mania, Liushi Fengyin Tang (Six-Metal Wind-Driving Decoction) is particularly excellent. Chaihu Jia Longgu Muli Tang (Bupleurum Plus Oyster Shell and Dragon Bone Decoction) is also generally applicable.
It is also said: If moxibustion is mistakenly applied when inappropriate, allowing fire pathogen to enter the abdomen and disrupt the five Zang organs, compounded by irritability leading to death. Guo Yong stated: For all cases of Fire Pathogen Reversal, Guizhi Gancao Longgu Muli Tang (Cinnamon Twig, Licorice, Oyster Shell, and Dragon Bone Decoction) is suitable.
Zhang Zhongjing said: Burning needles to induce sweating, where the needle site is exposed to cold, forming nodules that are red, will inevitably trigger Ben Tun (Running Piglet Qi). If Qi rushes from the lower abdomen up to the heart, apply one moxa cone on top of the nodule, and administer Guizhi Jia Gui Tang (Cinnamon Twig Decoction with Added Cinnamon Twig), increasing the dosage of Rougui (Cinnamon Bark).
It is also said: In Shaoyin Disease, occurring one or two days after onset, with a normal mouth sensation (no bitter taste or dryness) and aversion to cold in the back, moxibustion should be applied.
It is also said: In Shaoyin Disease, with vomiting and diarrhea, but hands and feet are not cold, and instead there is fever, the prognosis is not fatal. If the pulse is imperceptible, apply seven moxa cones to Shaoyin acupoints. Guo Yong stated: For all cases of Shaoyin diarrhea treated with moxibustion, Sini Tang (Frigid Extremities Decoction) should be taken concurrently.
It is also said: In Shaoyin Disease, with diarrhea, a fine and choppy pulse, vomiting, and sweating, there will be frequent defecation attempts but with little output. One should warm the upper part and apply moxibustion. Another version states: Apply fifty moxa cones to Jueyin channels. (It should be Baihui GV20).
It is also said: For all types of diarrhea, Dada SP2 (Great Market) on the foot can be moxibusted with five cones. (Another version says seven cones). Shangqiu SP5 and Yinlingquan SP9 can each be moxibusted with three cones.
It is also said: In diarrhea with cold extremities and absent pulse, if moxibustion does not warm the body and the pulse does not return, but instead slight panting occurs, the prognosis is fatal. If the Shaoyin pulse is weaker than the Duboyang (Foot Yangming) pulse, it is considered a favorable sign.
It is also said: In Shanghan with a hurried pulse (Cu) and cold extremities, moxibustion can be applied. This is because moxibustion on Shaoyin and Jueyin channels treats reversal conditions.
Pang Shi said: If moxibustion should have been applied but was not, causing cold stagnation in the patient, which becomes firmly established over time, Qi rushing to the heart will result in death.