治冷留肠胃，下痢纯白，腹痛不止。
当归 芍药 附子 白术 干姜 阿胶（蛤粉炒） 浓朴（各一两） 乌梅肉（二两）
为末，醋糊丸，桐子大，每服五十丸，空心米饮下。
一方
治肠风血痢。
用鲫鱼一个，破开去肠胆垢，入白矾二钱，烧灰存性，为末，米饮调服神效。
生姜茶茗各等分，煎服，取其姜助阳，茶助阴，一寒一热，调平阴阳，不问赤
白冷热，用之皆良。
芍药（一两） 当归 大黄（各四钱） 黄连 黄芩（各五钱） 肉桂（二钱五分） 槟榔（三钱）
木香 甘草（炙，各二钱） 每服五钱） 水煎温服。如痢不减，加大黄。
一方
治噤口痢。
用黄连半斤 咀，生姜四两，切作片，与黄连同炒，待姜焦黄色，去姜，只取黄连
为细末，用陈米饭捣烂，丸桐子大，每服七八十丸，赤者陈米饮下。白者陈皮汤下∶赤
白相参者，陈米橘皮汤下。又方，用石莲肉日干，为末，每服二钱，陈仓米饮调下，便
觉思食，仍以日照东方壁土炒真橘皮为末，姜枣略煎佐之。
一方
治虚滑甚者，用椿根白皮东引者，水浸一日，去黄皮，每两配人参一两，煨木香二
钱，粳米三钱，煎汤饮之。
补中益气汤
见发热门。
八味地黄汤
见痨瘵门。
儿生七日之内，有便血者，由母食酒面炙爆过多，在胎受之，女子则热毒入心，小
便尿血，男子则热毒入肺，大便便血，治法不可过投凉药，至于常人便血者，因脏气衰
弱，风邪乃入，是以或积冷蓄热，或湿毒传于肠胃，冷热交攻，损伤血气，渗入肠中而
便血也。亦有上焦心肺积热，流注大肠而便血者，故宜分或冷或热，或湿或风，或虚及
新久之异以治之，不可纯用寒凉，及单行单止，凉则令血凝泣，行则流走不已，止则无
可归经，即用凉药，必用辛味为佐，久不愈者，当用温剂，如黑姜归芍参术之类，使脾
能统血，血有所归也。多兼酸涩之药者，是欲少敛之也；药多用酒炒者，是欲升举之
也。收敛止塞之后，仍必和气血浓肠胃，使阴络无复伤之患耳。
治疗寒气滞留肠胃，下痢纯白色，腹痛不止。
当归、芍药、附子、白术、干姜、阿胶（用蛤粉炒）、浓朴（各一两）、乌梅肉（二两）。
研为细末，用醋调糊制成丸剂，如梧桐子大小，每次服用五十丸，空腹时用米汤送服。
另一方法：
治疗肠风血痢。
取鲫鱼一条，剖开去除内脏和胆囊污垢，放入白矾二钱，烧成灰但保留药性，研为细末，用米汤调服，效果神奇。
生姜与茶茗各等分，煎煮后服用，取其生姜助阳，茶叶助阴，一寒一热，调和阴阳，无论赤痢、白痢、冷痢或热痢，使用此方皆良效。
芍药（一两）、当归、大黄（各四钱）、黄连、黄芩（各五钱）、肉桂（二钱五分）、槟榔（三钱）、木香、甘草（炙，各二钱）。每次服用五钱，水煎温服。如果痢疾不减，加大黄用量。
另一方法：
治疗噤口痢（指痢疾患者因胃气虚弱无法进食者）。
取黄连半斤，切碎；生姜四两，切成片，与黄连同炒，待生姜炒至焦黄色，去掉生姜，只取黄连研为细末，用陈米饭捣烂，制成如梧桐子大小的丸剂，每次服用七八十丸，赤痢用陈米汤送服，白痢用陈皮汤送服；赤白相兼者，用陈米橘皮汤送服。又一方，用石莲肉晒干，研为细末，每次服用二钱，用陈仓米汤调服，服药后便觉得想吃饭了，再用日照东方墙壁上的土炒制的真橘皮研为细末，加生姜、大枣略煎后作为辅助。
另一方法：
治疗虚滑严重（指久痢滑脱不禁）者，用向东生长的椿根白皮，用水浸泡一天，去掉黄皮，每两椿根白皮配人参一两，煨木香二钱，粳米三钱，煎汤饮用。
补中益气汤
见发热门章节。
婴儿出生七日内，出现便血症状的，是由于母亲在孕期食用酒、面食及烤炸食物过多，胎儿在胎内受之所致。女子则热毒入心，导致小便尿血；男子则热毒入肺，导致大便便血。治疗方法不可过度投用凉药。至于常人便血，是因为脏腑之气衰弱，风邪乘虚而入，因此或是积冷蓄热，或是湿毒传于肠胃，冷热交攻，损伤血气，渗入肠中而致便血。也有上焦心肺积热，流注大肠而致便血的。所以应当区分是冷、是热、是湿、是风、是虚以及新病久病的不同来治疗，不可单纯使用寒凉药物，也不可单独使用行血或止涩药物。过用凉药会使血液凝滞，单用行血药则血流不止，单用止涩药则血无所归。即使使用凉药，也必须用辛味药作为佐使。久治不愈者，当用温剂，如黑姜、当归、芍药、人参、白术之类，使脾能统摄血液，血液有所归依。多配合酸涩药物的目的，是想稍微收敛一下；药物多用酒炒的目的，是想升举阳气。在收敛止塞之后，仍然必须调和气血，厚养肠胃，使阴络不再受到损伤。
To treat cold pathogen lingering in the intestines and stomach, presenting with dysentery of pure white mucus and unceasing abdominal pain.
Dang Gui (Angelicae Sinensis Radix), Bai Shao (Paeoniae Radix Alba), Fu Zi (Aconiti Lateralis Radix Praeparata), Bai Zhu (Atractylodis Macrocephalae Rhizoma), Gan Jiang (Zingiberis Rhizoma), E Jiao (Colla Corii Asini) (stir-fried with clam powder), Hou Po (Magnoliae Officinalis Cortex) (each 1 liang), Wu Mei Rou (Mume Fructus Flesh) (2 liang).
Grind into fine powder, make pills with vinegar paste, size of Sophora japonica seeds. Take 50 pills per dose, swallow on an empty stomach with rice water.
Another prescription:
To treat Chang Feng blood dysentery (intestinal wind with bloody stool).
Take one crucian carp, cut open, remove intestines and gallbladder impurities, insert 2 qian of Bai Fan (Alumen), burn to ash but retain its medicinal property, grind into powder, mix with rice water for oral administration; this is highly effective.
Ginger and tea leaves in equal proportions, decoct and drink. Ginger assists Yang, tea assists Yin; one is cold, one is hot, harmonizing Yin and Yang. It is beneficial regardless of whether the dysentery is red, white, cold, or hot.
Bai Shao (1 liang), Dang Gui, Da Huang (Rhei Radix et Rhizoma) (each 4 qian), Huang Lian (Coptidis Rhizoma), Huang Qin (Scutellariae Radix) (each 5 qian), Rou Gui (Cinnamomi Cortex) (2.5 qian), Bing Lang (Arecae Semen) (3 qian), Mu Xiang (Aucklandiae Radix), Gan Cao (Liquoritis Radix et Rhizoma) (roasted, each 2 qian). Take 5 qian per dose, decoct in water and take warm. If dysentery does not subside, increase the dosage of Da Huang.
Another prescription:
To treat Jin Kou Li (dysentery with inability to eat/swallow due to stomach weakness).
Take 8 liang of Huang Lian, crush it; take 4 liang of fresh ginger, slice it, stir-fry together with Huang Lian until the ginger turns scorched yellow. Remove the ginger, keep only the Huang Lian, grind into fine powder. Use aged rice porridge to mash and form pills the size of Sophora japonica seeds. Take 70-80 pills per dose. For red dysentery, swallow with aged rice water; for white dysentery, swallow with Chen Pi (Citri Reticulatae Pericarpium) decoction; for mixed red and white, swallow with aged rice and citrus peel decoction. Another method: use dried Shi Lian Rou (Nelumbinis Plumula) ground into powder, take 2 qian per dose, mix with aged grain water. The patient will feel appetite returning. Additionally, stir-fry Zhen Chen Pi (true aged tangerine peel) using soil from the eastern wall exposed to sunlight, grind into powder, decoct briefly with ginger and jujube to assist.
Another method:
For severe deficiency with slipping/diarrhea (incontinence of stool), use Chun Gen Bai Pi (Toosendan Radicis Cortex) growing towards the east. Soak in water for one day, remove the outer yellow bark. For every 1 liang of Chun Gen Bai Pi, combine with 1 liang of Ren Shen (Ginseng Radix), 2 qian of Wei Mu Xiang (Aucklandiae Radix roasted), and 3 qian of Jing Mi (Oryza Sativa Germen). Decoct in water and drink.
Bu Zhong Yi Qi Tang (Tonify the Middle and Augment the Qi Decoction)
See chapter on Fever Heat.
Ba Wei Di Huang Tang (Eight-Ingredient Rehmannia Root Decoction)
See chapter on Consumption Disease.
Infants who experience hematochezia (blood in stool) within seven days after birth are affected because the mother consumed excessive alcohol, wheat products, and roasted/fried foods during pregnancy, transmitting heat toxin to the fetus. In female infants, the heat toxin enters the Heart, causing hematuria (blood in urine); in male infants, the heat toxin enters the Lung, causing hematochezia. Treatment should avoid overusing cooling medicines. As for adults with hematochezia, it occurs because the internal organ qi is weak, allowing Wind pathogen to enter. Thus, it may be due to accumulated cold and stored heat, or damp-toxin transmitted to the intestines and stomach. Cold and heat attack each other, damaging Qi and Blood, which seep into the intestines causing bleeding. There are also cases where heat accumulates in the Upper Jiao (Heart and Lung) and flows down to the Large Intestine, causing bleeding. Therefore, treatment must differentiate between cold, heat, dampness, wind, deficiency, and new versus chronic conditions. One must not solely use cold/cool medicines, nor solely use blood-invigorating or astringent medicines. Overuse of cooling agents causes blood stasis; using only invigorating agents leads to continuous bleeding; using only astringents leaves blood without a proper pathway. Even when using cooling medicines, acrid/pungent herbs must be added as assistants. For chronic non-healing cases, warm formulas should be used, such as Hei Jiang (Charred Ginger), Dang Gui, Bai Shao, Ren Shen, and Bai Zhu, to enable the Spleen to control the blood and allow blood to return to its vessels. Astringent and sour herbs are often combined to achieve mild astringency; herbs are often stir-fried with wine to promote ascending action. After astringing and stopping bleeding, one must still harmonize Qi and Blood, and strengthen the intestines and stomach, so that the Yin collaterals are no longer injured.