怫郁有虚亦有实。要须仔细明证脉。（怫。音拂。盖燥屎者实也。吐下者虚也。）燥屎唯宜承气汤。（仲景云。病者小
便不利。大便乍难乍易。时有微热。怫郁不得卧。有燥屎故也。承气汤主之。）吐下极虚胃寒疾。（仲景云。伤寒大吐下
后。极虚。复极汗者。其人外气怫郁。复与之水。以发其汗。因得哕。所以然者。胃中寒冷。故致此也。）火薰汗出目须
黄。（仲景云。寸口脉。阳浮。阴濡而弱。医如火薰郁令汗出。客热因火而热发。怫郁蒸肌肤。身目为黄。）二阳并病面
还赤。（仲景云。二阳并病。太阳初得病时。先发其汗。汗先出不彻。因转属阳明。续自微汗出。设面色缘缘正赤者。阳
气怫郁。当解之薰之也）脉来洪大荣气长。（仲景云。寸口脉洪而大者。荣气长。荣气长则阳盛。怫郁不得出声。）随经
医治何由失。
伤寒何故生惊惕。吐下温针或火力。（或因吐下。或因温针。或因火劫。）下之谵语牡蛎汤。（仲景云。伤寒八九日。
下之。胸满烦惊。小便不利。谵语。一身尽痛。不可转侧者。柴胡牡蛎龙骨汤主之。）妄用温针于理逆。（仲景云。太阳
伤寒。加温针必惊也。）风温被火多 （尺世切。亦作螈。） 。（ 。子用切。仲景云。风温被火者。微发黄色。剧则
如惊痫。时 。若火熏之。一逆尚引日。再逆促命期。）阳明被火汗流出（仲景云。阳明病被火。额上微汗出。发热。
汗出不恶寒。加温针者。必怵惕烦躁不得眠。）脉浮火劫必亡阳。（仲景云。伤寒脉浮。医以火迫。劫之亡阳。必惊狂卧
起不安者。桂枝去芍药。加蜀漆。牡蛎龙骨救逆汤。）三者不同同此疾。少阳中风耳无闻。吐下悸惊常惕惕。（仲景云。
少阳中风。两耳无所闻。目赤。胸中满而不烦。不可吐下。吐下则悸而惊。）
Fu Yu (Oppression and Depression) patterns include both deficiency and excess types. One must carefully distinguish the symptoms and pulse. ("Fu" is pronounced as 'fu'. Dry stool accumulation indicates an excess pattern; improper use of emesis or purgation leading to righteous qi depletion indicates a deficiency pattern.) Dry stool accumulation is solely suitable for Chengqi Tang (Cinnamon Twig, Rhubarb, and Mirabilite Decoction). (Zhang Zhongjing stated: When a patient has difficulty urinating, bowel movements that are alternately difficult and easy, occasional slight fever, restlessness preventing sleep due to internal heat oppression, this is caused by dry stool. Chengqi Tang should be primarily used.) Improper use of emesis and purgation leads to extreme stomach deficiency and cold. (Zhang Zhongjing stated: After severe emesis or purgation in Shaoyang disease, the body becomes extremely deficient. If excessive sweating is induced subsequently, the exterior qi becomes oppressed. If water is then given to induce sweating, hiccups will result. This occurs because the stomach is cold, thus causing this condition.) Fire fumigation inducing sweat leads to yellowing of the eyes. (Zhang Zhongjing stated: At the Cun Kou pulse position, the Yang aspect floats while the Yin aspect is soft and weak. If the physician uses fire fumigation to force sweating, the pathogenic heat from the fire exacerbates, steaming the skin and muscles, resulting in jaundice of the body and eyes.) Two Yangs concurrent disease with persistent redness of the face. (Zhang Zhongjing stated: In concurrent disease of the two Yang channels, when Taiyang disease first appears, sweating should be induced initially. If the sweat is not thorough, the pathogen transfers to Yangming. Continued slight sweating occurs. If the face remains persistently red, it indicates Yang qi oppression at the exterior, which should be resolved through methods such as fumigation.) A surging and large pulse indicates abundant Ying Qi (Nutritive Qi). (Zhang Zhongjing stated: A surging and large pulse at the Cun Kou position indicates abundant Ying Qi. Abundant Ying Qi leads to Yang excess, causing oppression that prevents vocalization.) How can errors occur if treatment follows the channel pathways?
Why does Shanghan (Cold Damage) generate Jing Ti (Fright and Palpitations)? It arises from improper use of emesis, purgation, warm needle therapy, or fire stimulation. (Due to improper emesis/purgation, or improper warm needles, or improper fire coercion.) Purging leading to delirium can be treated with Muli Tang (Oyster Shell Decoction). (Zhang Zhongjing stated: After eight or nine days of Shanghan, if purgation is improperly used, resulting in chest fullness, mental restlessness and fright, difficulty urinating, delirium, whole-body pain, and inability to turn over, Chaihu Jia Longgu Muli Tang (Bupleurum, Dragon Bone, and Oyster Shell Decoction) should be used.) Indiscriminate use of warm needles contradicts medical principles. (Zhang Zhongjing stated: In Taiyang Shanghan, adding warm needle therapy will inevitably cause fright.) Feng Wen (Wind-Warmth) injured by fire often leads to convulsions. ("Yi" is pronounced as 'zi yong qie', also written as "Yi". Zhang Zhongjing stated: If Feng Wen is injured by fire, mild cases present with slight yellowing of the complexion; severe cases resemble epilepsy with intermittent convulsions, resembling fire fumigation. One error may prolong life, but a second error accelerates death.) Yangming disease injured by fire causes slight sweating on the forehead. (Zhang Zhongjing stated: In Yangming disease subjected to fire therapy, there is slight sweating on the forehead, fever, sweating without aversion to cold. If warm needles are added, there will inevitably be fear, fright, irritability, and insomnia.) A floating pulse subjected to fire coercion必然 leads to Wang Yang (Loss of Yang Qi). (Zhang Zhongjing stated: In Shanghan with a floating pulse, if the physician uses fire coercion to force sweating, leading to loss of Yang Qi, there will inevitably be fright, mania, restlessness in lying down and rising up. Guizhi Qu Shaoyao Jia Shuqi Longgu Muli Jiuni Tang (Cinnamon Twig Decoction without Peony, plus Chinese Dodder Herb, Dragon Bone, and Oyster Shell, for Saving from Emergency) should be used.) These three conditions differ but stem from similar iatrogenic errors. Shaoyang Wind Strike results in deafness. Improper emesis and purgation lead to palpitations and frequent fright. (Zhang Zhongjing stated: In Shaoyang Wind Strike, both ears cannot hear, eyes are red, chest is full but not vexed. Emesis and purgation are contraindicated. If improperly used, palpitations and fright will result.)