不令下陷为餐泄也。又云∶凡泄则水谷不化,谓之餐泄。是清气在下,乃胃气不升,上古圣人皆以升
浮药扶持胃气,一服而愈,知病在中焦脾胃也。《脉诀》曰∶湿多成五泄。湿者,胃之别名也。病本
在胃,真气弱。真气者,谷气也。不能克化饮食,乃湿盛故也。以此论之,正以脾胃之弱故也。初病
夺食,或绝不食一二日,使胃气日胜,泄不作也。今已成大泄矣,经云∶治湿不利小便,非其治也。
又云∶下焦如渎。又云∶在下者引而竭之。惟此证不宜。此论其病得之于胃气下流,清气不升,阳道
不行,宜升宜举,不宜利小便。《灵枢》云∶头有疾,取之足,谓阳病在阴也。足有疾,取之上,谓
阴病在阳也。中有疾,旁取之。旁者,少阳甲胆是也。中者、脾胃也。脾胃有疾,取之足少阳。甲胆
者,甲风是也,东方春也。胃中谷气者,便是风化也。作一体而认,故曰胃中湿胜而成泄泻,宜助甲
胆风胜以克之,又是升阳助清气上行之法也。又一
说,中焦元气不足,溲便为之变,肠为之苦鸣,亦缘胃气不升,故令甲气上行。又云∶风胜湿也。大
抵此证,本胃气弱,不能化食,夺食则一日而可止。夫夺食之理,为胃弱不能克化,食则为泄,如食
不下何以作泄,更当以药滋养元气令和,候泄止渐与食,胃胜则安矣。若食不化者,于升阳风药内加
炒曲同煎。兼食入顿至心头者,胃之上口也,必口沃沫,或食入反出,皆胃土停寒,其右手关脉中弦,
按之洪缓,是风热湿相合,谷气不行,清气不升,为弦脉之寒所隔,故不下也。曲之热亦能去之。若
反胃者,更加半夏、生姜,入于风药内同煎。夺食少食,欲使胃气强盛也。若药剂大则胃不胜药,泄
亦不止,当渐渐与之。今病既久,已至衰弱,当以常法治之,不可多服饵也。人之肉,如地之土,岂
可人而无肉,故肉消尽则死矣。消瘦之人,有必死者八,《内经》有七,《外经》有一。又病肌肉去
尽,勿治之,天命也。如肌肉不至瘦尽,当急疗之,宜先夺食而益胃气,便与升阳。先助真气,次用
风药胜湿,以助升腾之气,病可已矣。余皆勿论,此治之上法也。(治用升阳除湿汤之类是也。)春
伤于风,夏生餐泄,木在时为春,在人为肝,在天为风。风者、无形之清气也,当春之时,发为温令,
反为寒折,是三春之月行三冬之令也,以是知水为太过矣。水
既太过,金肃愈严,是所胜者乘之而妄行也。所胜者乘之,则木虚明矣。故经曰∶从后来者为虚邪。
木气既虚,火令不及,是所生者受病也,故所不胜者侮之,是以土来木之分,变而为餐泄也。故经曰∶
清气在下,则生餐泄。以其湿令当权,故餐泄之候,发之于夏也。若当春之时,木不发生,温令未显,
止行冬令,是谓伤卫,以其阳气不出地之外也,当以麻黄汤发之。麻黄味苦,味之薄者,乃阴中之阳
也。故从水中补木而泻水,发出津液为汗也。若春木既生,温令已显,阳气出于地之上,寒再至而复
折之,当以轻发之,谓已得少阳之气,不必用麻黄也。春伤于风,夏生餐泄,所以病发于夏者,以木
绝于夏,而土旺于长夏,湿本有下行之体,故餐泄于夏也。不病于春者,以其春时风虽有伤,木实当
权,故餐泄不病于木之时,而发于湿之分也。经曰∶至而不至,是为不及,所胜妄行,所不胜者搏之,
所生者受病,此之谓也。仲景法,下利清谷,里寒外热,汗出而厥者,通脉四逆汤主之。河间法,餐
泄,风冷入中,泄利不止,脉虚而细,日夜数行,口干腹痛不已,白术汤主之。东垣云∶泄利餐泄,
身热,脉弦腹痛而渴,及头痛微汗,宜防风芍药汤。东垣所云∶内动之风也。经云∶春伤于风,夏生
餐泄。又云∶久风为餐泄。又云∶虚邪之中人
也,始于皮肤,留而不去,传舍于络脉;留而不去,传舍于经;留而不去,传舍于输;留而不去,传
舍于伏冲之脉;留而不去,传舍于肠胃。在肠胃之时,贲响腹胀,多寒则肠鸣餐泄,食不化,则非内
动之风也。洁古云∶大渴引饮,多致水谷一时下者,宜灸大椎三五壮,或用车前子、雷丸、白术、茯
苓及五苓散等药渗之。又如久风为餐泄者,则不饮水而谷完出,治法当以宣风散导之,后服苍术防风
汤。餐泄以风为根,风非汗不出。有病此者,腹中雷鸣,泄注水谷不分,小便涩滞,皆以脾胃虚寒故
耳,服豆蔻、乌梅、粟壳、干姜、附子,曾无一效,中脘脐下灸已数千,燥热转甚,津液涸竭,瘦削
无力,饮食减少。延予视之,予以应象论曰,热气在下,水谷不分,化生餐泄,寒气在上,则生 胀,
而气不散何也,阴静而阳动故也。诊其脉两手皆浮大而长,身表微热,用桂枝麻黄汤,以姜枣煎。大
剂连进三服,汗出终日,至旦而愈。次以胃风汤和其脏腑,调养阴阳,食进而愈。经云∶脾虚则腹满
肠鸣,泄食不化。又云∶餐泄取三阴。三阴者,太阴也。宜补中益气汤,以白芍药代当归主之。又云∶
肾脏志,志有余,腹胀餐泄,泻然筋血。又云∶肝足厥阴之脉,所生病者,胸满呕逆,餐泄,视盛、
虚、寒、热、陷下施法。此皆内因无风者也。
Do not allow the pathogenic factor to sink downward, which would lead to *canxie* (diarrhea caused by dietary indiscretion). It is also stated: Whenever there is diarrhea with undigested food and water in the stool, it is called *canxie*. This occurs because clear Qi fails to ascend due to the failure of Stomach Qi to rise. The sages of antiquity all used ascending and floating herbs to support Stomach Qi, resulting in a cure after a single dose, indicating that the disease location is in the Middle Jiao (Middle Burner) Spleen and Stomach. The *Maijue* (Pulse Classic) states: "Excess dampness leads to five types of diarrhea." Dampness is another name for the Stomach. The root of the disease lies in the Stomach, where True Qi is weak. True Qi refers to Grain Qi (Qi derived from food and drink). The inability to digest food and drink is due to excessive dampness. Based on this discussion, the cause is precisely the weakness of the Spleen and Stomach. In the initial stage, withholding food or fasting completely for one or two days allows Stomach Qi to strengthen day by day, stopping the diarrhea. Now that severe diarrhea has developed, the Classics state: "To treat dampness without promoting urination is not the correct method." It is also said: "The Lower Jiao is like a drainage ditch." And again: "For diseases located below, use methods to drain them thoroughly." However, these principles are not suitable for this specific condition. This argument posits that the disease arises from the sinking of Stomach Qi, failure of clear Qi to ascend, and obstruction of the Yang pathways. Therefore, treatment should focus on ascending and lifting, rather than promoting urination. The *Ling Shu* (Spiritual Pivot) states: "When there is disease in the head, treat the feet; this is treating Yin for Yang disease. When there is disease in the feet, treat the upper body; this is treating Yang for Yin disease. When there is disease in the middle, treat from the sides." The sides refer to the Shaoyang Gallbladder Meridian. The middle refers to the Spleen and Stomach. For Spleen and Stomach diseases, select points from the Foot-Shaoyang Gallbladder Meridian. The "Jia Gallbladder" refers to Jia Wind (Wind-Wood Qi), corresponding to the East and Spring. The Grain Qi in the Stomach is essentially the manifestation of Wind transformation. Recognizing them as a unified whole, it is said that when dampness overcomes the Stomach causing diarrhea, one should assist the Wind-Wood Qi of the Jia Gallbladder to overcome the dampness. This is also a method of raising Yang Qi and assisting the ascent of clear Qi. Another theory suggests that insufficient Yuan Qi in the Middle Jiao leads to abnormalities in urination and defecation, and painful borborygmus in the intestines, also due to the failure of Stomach Qi to ascend, causing Jia Wood Qi to move upward. It is also said: "Wind overcomes dampness." Generally, this condition stems from weak Stomach Qi unable to transform food; withholding food for one day can stop it. The rationale for withholding food is that a weak Stomach cannot digest; eating leads to diarrhea. If one cannot eat, how can diarrhea occur? One should instead use medicine to nourish and harmonize Yuan Qi. Once diarrhea stops, gradually reintroduce food; when Stomach Qi strengthens, health will return. If food remains undigested, add fried Shenqu (Medicated Leaven) to the ascending wind-dispelling herbs for decoction. If food feels like it rushes immediately to the heart upon ingestion, this involves the upper opening of the Stomach (the cardia), often accompanied by drooling or regurgitation. This indicates cold stagnation in Stomach Earth. The pulse at the Guan position of the right hand is wiry, and deep pressure reveals a surging yet slow quality. This represents a combination of wind, heat, and dampness, where Grain Qi fails to move and clear Qi fails to ascend, blocked by the cold represented by the wiry pulse, preventing descent. The warmth of Shenqu can also dispel this. If regurgitation is present, add Banxia (Pinellia Rhizome) and Shengjiang (Fresh Ginger) to the wind-dispelling herbs for decoction. Withholding or reducing food intake aims to strengthen Stomach Qi. If the medicinal dosage is too strong, the Stomach cannot tolerate it, and diarrhea will not cease; thus, the dosage should be increased gradually. Since the illness has persisted for a long time and the patient is now weak, treat according to standard methods, avoiding excessive tonification. Human flesh is like the soil of the earth; can a person exist without flesh? Thus, when flesh is completely consumed, death ensues. There are eight signs of inevitable death in emaciated individuals: seven recorded in the *Nei Jing* (Inner Canon) and one in the *Wai Jing* (Outer Canon). Furthermore, if muscles are completely wasted away, do not treat it; this is destiny. If muscles have not wasted to the extreme, urgent treatment is required. First, withhold food to benefit Stomach Qi, then employ ascending methods. First assist True Qi, then use wind herbs to overcome dampness, thereby aiding the ascending and rising Qi, and the disease can be cured. Other matters are not discussed here; this is the superior method of treatment (using formulas such as Shengyang Chushi Tang). Injury by wind in spring leads to *canxie* in summer. Wood corresponds to spring in seasons, Liver in the human body, and wind in heaven. Wind is formless clear Qi. During spring, warm commands emerge but are suppressed by cold, meaning the three months of spring follow the commands of winter. From this, we know Water Qi is excessive. Since Water is excessive, Metal's肃杀 (astringent/descending) nature becomes stricter; this is the overcoming element taking advantage of deficiency to act recklessly. When the overcoming element acts recklessly, Wood Qi is clearly deficient. Hence, the Classics state: "What comes from behind is called empty evil." With Wood Qi deficient, Fire commands are inadequate; this means the generated element (Fire, child of Wood) suffers disease. Consequently, the non-overcoming element (Water, which controls Fire) insults it. Thus, Earth Qi invades Wood's domain, transforming into *canxie*. Hence, the Classics state: "Clear Qi remaining below generates *canxie*." Because damp commands hold power, *canxie* symptoms manifest in summer. If during spring, Wood Qi does not generate, warm commands do not appear, and only winter commands prevail, this is termed injury to Wei Qi (Defensive Qi), because Yang Qi does not emerge from beneath the earth. In such cases, use Mahuang Tang (Ephedra Decoction) to induce sweating. Mahuang (Ephedrae Herba) is bitter and thin in flavor, representing Yang within Yin. Thus, it supplements Wood by drawing from Water and drains Water, releasing fluids as sweat. If Spring Wood has already grown and warm commands are evident, with Yang Qi emerging above the earth, but cold returns to suppress it, use mild release methods. This implies obtaining Shaoyang Qi, so Mahuang is unnecessary. The reason *canxie* manifests in summer despite spring wind injury is that Wood Qi ends in summer, while Earth prospers in late summer. Dampness naturally tends downward, hence *canxie* occurs in summer. It does not occur in spring because, although wind causes injury, Wood Qi is actually dominant. Thus, *canxie* does not manifest when Wood is in command but when Dampness is in command. The Classics state: "When the season arrives but the corresponding Qi does not, it is called insufficiency. The overcoming element acts recklessly, the non-overcoming element attacks, and the generated element suffers disease." This is what is meant. Zhang Zhongjing's method: For dysentery with undigested food, interior cold with exterior heat, sweating, and cold extremities, use Tongmai Sini Tang (Decoction for Reviving the Pulse). Liu Wan-su's method: For *canxie* with wind-cold invading the interior, unceasing diarrhea, deficient and fine pulse, frequent bowel movements day and night, dry mouth, and persistent abdominal pain, use Baizhu Tang (Atractylodes Macrocephala Decoction). Li Dong-yuan states: For diarrhea and *canxie* with fever, wiry pulse, abdominal pain, thirst, headache, and slight sweating, use Fangfeng Shaoyao Tang (Saposhnikovia and Peony Decoction). Li Dong-yuan refers to this as internally generated wind. The Classics state: "Spring wind injury leads to summer *canxie*." Also: "Chronic wind transforms into *canxie*." Also: "Empty evils entering humans start at the skin; if they remain, they transmit to collaterals; if they remain, to meridians; if they remain, to transport points; if they remain, to the Fu-Chong vessels; if they remain, to the intestines and stomach." During the intestinal and stomach phase, there is rushing noise and abdominal distension. Excess cold causes borborygmus and *canxie*, with undigested food. This is not internally generated wind. Zhang Jie-gu states: Severe thirst with drinking leading to rapid passage of food and water should be treated by moxibustion on Dazhui (GV14) for 3–5 cones, or using Cheqianzi (Plantaginis Semen), Leiwan (Alloplasia Root), Baizhu (Atractylodis Macrocephalae Rhizoma), Fuling (Poria), and Wuling San (Five-Ingredient Powder with Poria) to leach out dampness. Regarding *canxie* caused by chronic wind, where there is no thirst and complete food passes through, the treatment should involve Xuanfeng San (Wind-Releasing Powder) to guide stagnation, followed by Cangzhu Fangfeng Tang (Atractylodes and Saposhnikovia Decoction). *Canxie* takes wind as its root; wind cannot exit without sweating. Patients with this condition have borborygmus, watery diarrhea with indistinguishable food and water, and scanty urine, all due to Spleen-Stomach deficiency-cold. Taking Cardamom, Mume Fruit, Poppy Shell, Dried Ginger, and Aconite yields no effect. Moxa applied to Zhongwan (CV12) and below the umbilicus amounts to thousands of cones, yet dryness and heat worsen, fluids dry up, emaciation and weakness increase, and appetite decreases. Upon examination, I applied the principle of correspondence: "Heat below causes indistinguishable food and water, generating *canxie*; Cold above causes distension, with Qi failing to disperse. Why? Because Yin is still and Yang moves." Palpating the pulse, both hands were floating, large, and long. The body surface had slight heat. I prescribed Guizhi Mahuang Tang (Cinnamon Twig and Ephedra Decoction) decocted with Fresh Ginger and Jujube. Administered in large doses, three consecutive servings resulted in profuse sweating throughout the day, with recovery by dawn. Subsequently, Weifeng Tang (Stomach-Wind Decoction) was used to harmonize the Zang-Fu organs and regulate Yin and Yang. Health returned with food intake. The Classics state: "Spleen deficiency leads to abdominal fullness, borborygmus, and diarrhea of undigested food." Also: "For *canxie*, select the Three Yin meridians." The Three Yin refers to the Taiyin (Spleen/Lung/Kidney Yin channels, specifically Spleen here). Use Buzhong Yiqi Tang (Tonify the Middle and Augment the Qi Decoction), substit Danggui (Angelica Sinensis Radix) with Baishao (White Peony Root). Also: "The Kidney houses the Will (Zhi). Excess in Will leads to abdominal distension and *canxie*; bleed the Ranjin blood vessels." Also: "Diseases of the Foot-Jueyin Liver Meridian include chest fullness, vomiting, reverse flow, and *canxie*. Treatment depends on excess, deficiency, cold, heat, or sinking conditions." These are all internal causes without wind pathogens.