病而服药，须守禁忌，孙真人《千金方》，言之详矣。但不详言所以守禁忌之由，敢陈其略，以为规戒。夫胃气者，
清纯冲和之气，人之所赖以为生者也。若谋虑神劳，动作形苦，嗜欲无节，思想不遂，饮食失宜，药饵违法，皆能致伤。
既伤之后，须用调补，恬不知怪，而乃恣意犯禁，旧染之证，与日俱积。吾见医将日不暇给，而伤败之胃气，无复完全
之望，去死近矣。
予族叔形色俱实， 疟又患痢，自恃强健能食，绝无忌惮。一日召我曰∶我虽病，却健而能食，但苦汗出耳！汝能
止此汗否？予曰∶ 疟非汗出不能愈也。可虑者正在健与能食耳！此非痢也。胃热善消，脾病不化，食积与病势已甚矣。
此时节择饮食以养胃气，省出入以避风寒，候汗透而安。叔曰∶世俗谓无饱死痢，我今能食，何谓可虑？余曰∶痢而能
食者，知胃气未病也，故言不死，非谓恣食不节择者。不从所言，恣口大嚼，遇渴又多啖水果，如此者月余后，虽欲求
治，不可着手矣。淹淹又月余而死。《内经》以骄恣不伦于理，为不治之病。信哉！
又周其姓者，形色俱实，患痢善食而易饥，大嚼不择者五日矣。予责之曰∶病中当调补自养，岂可滋味戕贼！遂教
之只用熟萝卜吃粥耳，少与调治，半月而安。
血气者，身之神也。神既衰乏，邪因而入，理或有之。若夫血气两亏，痰客中焦，妨碍升降，不得运用，以致十二
官各失其职，视听言动，皆有虚妄。以邪治之，其人必死。吁哉冤乎！谁执其咎？
宪幕之子傅兄，年十七、八，时暑月，因大劳而渴，恣饮梅浆，又连得大惊三四次，妄言妄见，病似邪鬼。诊其脉，
两手皆虚弦而带沉数。予曰∶数为有热，虚弦是大惊，又梅酸之浆，郁于中脘，补虚清热，导去痰滞，病乃可安。遂与
人参、白术、陈皮、茯苓、芩、连等浓煎汤，入竹沥、姜汁。与旬日，未效，众皆尤药之不审。余脉之，知其虚之未完，
与痰之未导也。仍与前方，入荆沥。又旬日而安。
外弟岁，一日醉饱后，乱言妄语妄见，询之系伊芳亡兄附体，言生前事甚的。乃叔在旁叱之。曰∶非邪。食腥与酒太
过，痰所为耳！灌盐汤一大碗，吐痰一、二升，汗因大作，困睡一宵而安。
又金氏妇，壮年。暑月赴筵归，乃姑询其坐次失序，遂赧然自愧，因成此病。言语失伦，其中又多间一句曰∶奴奴
不是。脉皆数而弦。余曰∶此非邪，乃病也。但与补脾清热导痰，数日当自安。其家不信，邀数巫者，喷水而咒之，旬
余而死。或问曰∶病非邪而邪治之，何遽至于死？余曰∶暑月赴宴，外境蒸热，辛辣适口，内境郁热，而况旧有积痰，
加之愧闷，其痰与热，何可胜言。今乃惊以法尺，是惊其神而血不宁也；喷以法水，是审其体密其肤，使汗不得泄也。
汗不泄，则蒸热内燔；血不得宁，则阴消而阳不能独立也。不死何俟？或曰∶《外台秘要》有禁叽一科，庸可废乎？予曰∶
移精变气乃小术耳，可治小病。若内有虚邪，外有实邪，当用正大之法，自有成式，昭然可考。然符水惟膈上热痰，一
呷凉水，胃热得之，岂不清快，亦可取安。若内伤而虚，与冬严寒，符水下咽，必冰胃而致害。彼郁热在上，热邪在表，
须以汗解。率得清冷，肤腠固密，热何由解？必致内攻，阴阳离散，血气乖争，去死为近。
患病后服药，必须遵守禁忌，孙思邈在《千金方》中已经讲得很详细了。但他没有详细说明为什么要遵守这些禁忌，我斗胆陈述其中的大概道理，作为规劝和警戒。所谓胃气，是清纯冲和之气，是人赖以生存的根本。如果思虑过度导致神劳，形体动作劳累痛苦，嗜欲没有节制，思想愿望不能实现，饮食不当，用药违背法度，都会造成损伤。一旦受伤之后，需要用调补的方法治疗，人们对此习以为常并不觉得奇怪，反而肆意违反禁忌，原有的病症就会与日俱增。我见过医生忙得不可开交，而受损败坏的胃气，再也没有恢复完全的希望，离死亡就不远了。
我的族叔形色都显得充实强壮，既患疟疾又患痢疾，自恃身体强健能吃，完全没有顾忌。有一天叫我，说：“我虽然生病，但精神健旺且能进食，只是苦于出汗罢了！你能止住这个汗吗？”我说：“疟疾不是通过出汗是不能痊愈的。值得担忧的正是你看似健康且能进食啊！这其实不是普通的痢疾。胃热则善于消化，脾病则不能运化，食积和病势都已经很严重了。这个时候应该选择清淡饮食以养护胃气，减少外出活动以避开风寒，等待汗透发出来病情才能安定。”叔叔说：“世俗认为没有因吃饱而死在痢疾上的，我现在能吃东西，为什么说值得担忧？”我说：“痢疾还能吃东西，说明胃气还没有生病，所以说不会死，并不是指可以肆意饮食不加节制的人。”他不听从我的话，大口大吃，遇到口渴又多吃水果，像这样过了一个多月后，即使想求治，也无法着手了。拖延了又一个月就死了。《内经》把骄纵放肆、不合情理的行为列为不治之症。确实如此啊！
又有姓周的病人，形色都显得充实强壮，患痢疾且善食易饥，大口大吃不挑食已经五天了。我责备他说：“生病期间应当调养补益自我修养，怎么可以用滋味厚重的食物戕害身体！”于是教他只用熟萝卜吃粥，稍加调理，半个月就好了。
血气，是身体的神明（生命活力）。既然血气衰乏，邪气因而侵入，道理上或许有这种情况。如果是血气两亏，痰饮客居于中焦，妨碍气机升降，不能正常运用，导致十二脏腑各自失去职能，看、听、说、动，都有虚妄的表现。如果用治邪的方法来治疗，这个人一定会死。唉，真是冤枉啊！谁来承担这个责任？
宪幕的儿子傅兄，十七八岁，正值暑月，因为大劳动后口渴，恣意饮用梅浆，又接连受到三四次大惊吓，胡言乱语，看见幻象，病情好像被邪鬼附体。诊察他的脉象，两手脉都虚弦且带有沉数。我说：“数脉是有热，虚弦是大惊所致，加上梅子酸浆郁结在中脘，需要补虚清热，导去痰滞，病才能安定。”于是用人参、白术、陈皮、茯苓、黄芩、黄连等浓煎汤剂，加入竹沥、姜汁。服用十天后，没有见效，众人都责怪药方不审慎。我再诊脉，知道他虚损尚未完全恢复，痰浊尚未导去。仍然用前方，加入荆沥。又过了十天病情才安定。
我的表弟，有一天醉饱之后，胡言乱语，看见幻象，询问他说是已故的哥哥附体，说的生前事情非常确切。当时他叔叔在旁边叱责他，说：“这不是邪祟。是因为吃了太多腥膻和酒，是痰造成的！”灌下一大碗盐汤，吐出痰一、二升，随后大汗大作，困倦睡了一夜就好了。
还有金氏妇，正值壮年。暑月赴宴归来，婆婆询问她座位次序失当，她便羞愧自责，因此得了这个病。言语失伦，中间又多了一句说：“奴家不是。”脉象都数而弦。我说：“这不是邪祟，而是疾病。只要补脾清热导痰，几天自然会好。”她的家人不信，请了几个巫师，喷水念咒，十多天后就死了。有人问我说：“病不是邪祟却用治邪的方法，为什么这么快就死了？”我说：“暑月赴宴，外界环境蒸热，辛辣食物适口，体内郁热，何况原本就有积痰，再加上羞愧郁闷，那痰与热的程度，哪里说得完。现在用符尺惊吓他，这是惊吓他的神明而使血不安宁；喷洒符水，这是审视他的身体使皮肤腠理密闭，让汗无法排泄。汗不能排泄，则蒸热在内焚烧；血不能安宁，则阴液消亡而阳气不能独立存在。不死还等什么？有人说：《外台秘要》中有禁叽（驱邪）这一科，难道可以废弃吗？我说：移精变气只是小法术，只能治小病。如果内有虚邪，外有实邪，应当使用正大之法，自有成型的规范，明显可考。然而符水只适用于膈上热痰，喝一口凉水，对于胃热的人来说，难道不清爽痛快吗？也可以取得安宁。如果是内伤而虚，以及冬天严寒，符水下咽，必定冰镇胃气而导致危害。那些郁热在上，热邪在表的，必须通过发汗来解表。如果率尔得到清冷之物，使皮肤腠理固密，热邪从哪里解除？必然导致邪气内攻，阴阳离散，血气乖争，离死亡就不远了。”
When taking medicine for an illness, one must observe dietary and lifestyle taboos. Sun Simiao detailed this extensively in *Qianjin Fang* (Thousand Golden Prescriptions). However, he did not elaborate on the reasons behind these taboos. I dare to briefly expound on them as a warning and admonition. The Stomach Qi (Stomach Energy) is the pure, clear, and harmonious energy upon which human life depends. If mental labor is excessive due to overthinking, physical exertion causes suffering, desires are unregulated, aspirations remain unfulfilled, diet is improper, or medication violates proper methods, all of these can cause injury. Once injured, regulation and tonification are required. People often become accustomed to this without surprise, yet they recklessly violate taboos, causing existing conditions to accumulate day by day. I have seen physicians overwhelmed with work, while the damaged Stomach Qi has no hope of complete recovery, bringing death near.
My clan uncle appeared physically robust and strong, suffering from both Malaria (a disease characterized by alternating chills and fever) and Dysentery (a disease characterized by frequent passage of small amounts of bloody or mucoid stool). Relying on his strength and appetite, he had no fears or restrictions. One day he summoned me, saying, "Although I am ill, I am vigorous and can eat; I only suffer from sweating. Can you stop this sweating?" I replied, "Malaria cannot be cured without sweating. What is concerning is precisely your apparent health and ability to eat! This is not ordinary dysentery. Stomach Heat (excess heat in the stomach) promotes digestion, but Spleen Disease (impairment of the spleen's transformation and transportation function) leads to failure in processing food. Food retention and the pathogenic process are already severe. At this stage, one should choose foods that nourish Stomach Qi, reduce outings to avoid Wind-Cold (wind and cold pathogens), and wait for sweat to penetrate so that peace may return." My uncle said, "The common belief is that one does not die of fullness from dysentery. Since I can eat now, why do you say it is concerning?" I answered, "Being able to eat during dysentery indicates that Stomach Qi is not yet diseased, hence it is said one will not die. This does not mean one can eat indiscriminately without restraint." He did not follow my advice, ate greedily, and when thirsty, consumed much fruit. After more than a month of this, even if he sought treatment, it would be impossible to intervene. He lingered for another month before dying. *Nei Jing* (Inner Canon) classifies arrogance and irrational behavior as incurable diseases. Truly so!
Another patient surnamed Zhou appeared physically robust, suffering from dysentery with a good appetite and easy hunger. He had been eating large amounts without selection for five days. I reprimanded him, saying, "During illness, one should regulate and tonify oneself to nurture health. How can one use rich flavors to damage the body?" I instructed him to eat only cooked radish congee. With slight regulation, he recovered in half a month.
Blood and Qi (vital substances and energy) are the spirit of the body. If Blood and Qi decline, pathogens may enter; this is theoretically possible. If both Blood and Qi are deficient, and Phlegm (pathological fluid accumulation) lodges in the Middle Jiao (middle burner/abdominal region), obstructing the ascending and descending mechanisms, preventing normal operation, the Twelve Organs (Zang-Fu organs) each lose their functions. Vision, hearing, speech, and movement all become delusional. Treating this with methods for exorcising evil will surely kill the person. Alas, how unjust! Who bears the blame?
The son of Official Fu, aged seventeen or eighteen, in midsummer, became thirsty after severe labor and drank plum syrup recklessly. He also suffered three or four sudden frights. He spoke nonsense, saw hallucinations, and his condition resembled possession by evil spirits. His pulse was deficient, wiry, and slightly deep and rapid in both hands. I said, "Rapid pulse indicates Heat. Deficient-wiry pulse indicates great fright. Additionally, the sour plum syrup is stagnating in the Middle Jiao. We must tonify deficiency, clear Heat, and guide out Phlegm stagnation for the illness to settle." I prescribed a decoction of Ginseng Radix et Rhizoma (Renshen), Atractylodis Macrocephalae Rhizoma (Baizhu), Citri Reticulatae Pericarpium (Chenpi), Poria (Fuling), Scutellariae Radix (Huangqin), and Coptidis Rhizoma (Huanglian), concentrated and boiled, adding Bamboo Sap (Zhuli) and Ginger Juice (Jiangzhi). After ten days, there was no effect, and everyone blamed the imprecise prescription. I palpated the pulse again and realized his deficiency was not fully resolved and Phlegm was not yet guided out. I continued with the previous formula, adding Calamus Rhizoma Ash (Jingli). After another ten days, he recovered.
My younger brother, after becoming drunk and overeating one day, spoke nonsense, hallucinated, and claimed his deceased elder brother possessed him, recounting past events accurately. His uncle scolded him nearby, saying, "This is not evil. It is caused by Phlegm due to excessive consumption of fish/meat and alcohol." I administered a large bowl of salt water, causing him to vomit one or two sheng (approx. 500-1000ml) of Phlegm. Profuse sweating ensued, and after sleeping through the night exhausted, he recovered.
Madam Jin, in her prime, returned from a banquet in midsummer. Her mother-in-law questioned her regarding her improper seating order, leading to shame and self-reproach, resulting in this illness. She spoke irrationally, frequently adding, "I am not [guilty]." Her pulses were rapid and wiry. I said, "This is not evil, but disease. Tonify the Spleen, clear Heat, and guide out Phlegm; she will recover in a few days." Her family disbelieved, inviting several shamans who sprayed water and chanted spells. More than ten days later, she died. Someone asked, "If the illness is not evil but treated as such, why did she die so quickly?" I replied, "In midsummer, attending a banquet, the external environment is steaming hot, and spicy foods suit the palate, creating internal stagnant Heat. Moreover, she had pre-existing retained Phlegm, compounded by shame and depression. The extent of Phlegm and Heat is incalculable. Now, frightening her with a magic ruler startles her Spirit (Shen), causing Blood to become unsettled; spraying magic water examines her body, sealing the skin pores, preventing sweat from venting. If sweat cannot vent, steaming Heat burns internally; if Blood is not settled, Yin declines and Yang cannot stand alone. Why wait for death? Some ask: *Waitai Miyao* (Essential Prescriptions Worth a Thousand Gold) has a section on 'Jin Ji' (forbidden chanting/exorcism). Can it be discarded? I say: Shifting Spirit and changing Qi is a minor art, suitable only for minor illnesses. If there is internal deficient-pathogen and external excess-pathogen, one must use upright and correct methods, following established norms clearly documented. Magic water is only suitable for Heat-Phlegm above the diaphragm; drinking cool water might feel refreshing for Stomach Heat, providing some relief. But if there is internal injury with deficiency, or in severe winter cold, swallowing magic water will ice the Stomach and cause harm. For those with stagnant Heat above and Heat pathogens on the exterior, resolution via sweating is necessary. If one rashly uses cold/clearing agents, solidifying the skin pores, how can Heat resolve? This inevitably leads to internal attack, dispersion of Yin and Yang, conflict of Blood and Qi, bringing death near."