大射干汤 治胃痈始成。
射干 升麻 白术 赤芍药 赤茯苓 山栀仁
水煎熟，入蜜生地汁和服。
甘桔汤 治胃痈痰气上壅。
甘草 桔梗 麦门冬（各一两） 水煎服。
三仁汤 治胃痈小便赤涩，腹满不食。
薏苡仁 桃仁 冬瓜子仁 牡丹皮水煎服。
射干汤
射干 升麻 犀角 麦门冬 元参 大黄 黄芩（各一钱） 芒硝 栀子 竹叶（各五钱） 水煎服。
赤豆苡仁汤
赤小豆 防己 薏苡仁 甘草（各等分） 水煎，食远服。
经曰∶天枢隐隐痛者大肠疽；其上肉微起者大肠痈。（天枢穴，又名大肠募，大肠募在脐旁开二寸。）
陈远公曰∶人腹中疼甚，手不可按，右足屈而不伸，人以为腹中火盛而存食也，谁
知大肠生痈乎！凡腹痛足不能伸者，俱肠
痈也，而大肠痈足犹不能伸也。但大肠生痈，无不成于火，火盛不散则结郁成痈矣。
然火之有余，本水之不足，水衰则火旺，火无水制，乃养成其毒耳。治法不必治火，壮
水以制火，毒瓦斯自消矣。清肠饮∶金银花三两，当归二两，地榆、麦冬、元参各一
两，苡仁五钱，生甘草三钱，黄芩二钱，水煎服。一次痛少止，二剂足可伸，又二剂
毒尽。（此方活血解毒，虽泻火而实滋阴也，相济相成，取效如神耳。倘不益阴以润肠，唯攻毒以降火，则大肠
先损，何能胜火毒凌灼哉，无怪治之不效也。《冰鉴》）
又曰∶大肠生痈，右足不伸，腹疼甚，便出脓血，肛门如刀割，此已溃烂也。能
食者生，不能食者死。然不能食之中，亦有非因火毒之炽而然者，又不因其不能食
而弃之也。凡生痈疽，俱以有胃气为佳，为胃气无论阴毒阳毒，多不可救。故阴疽证
必以扶胃气为第一，少加败脓祛毒，则正气无伤，火毒易散，今大肠痈破而不思食，
则胃气尽绝，大危证也。不急补胃，而惟治痈，必死之道矣。开胃救亡汤∶人参、山
药、薏仁、元参、白术各一两，金银花二两，生甘草三钱，山羊血一钱研，水煎调
服，一剂胃开，二剂脓少，三剂疼止，四剂全愈。（此方救胃而败脓祛毒已在其中，妙在银花治
毒，仍是滋阴之品，为疮家夺命之将军，乃至仁至勇之帅。又得参术辅助其力，则散毒犹神。山羊血止血解渴，
且善通气，引各药直入痈中以解散之，合而治之，调合有人，抚绥有人，攻剿有人，安得不胜乎！自然胃气开，
化精微而转输于大肠也。倘胃气未伤，服之尤效，切勿疑而不用，以枉人性命耳。）
又曰∶大肠生痈，小腹痛甚，淋沥不已，精神衰少，饮食无味，面色痿黄，四
肢无力，自汗盗汗，夜不得卧，人以为火盛生痈也，谁知水衰不能润肠耳！夫大肠
不能传导者，全赖肾水灌注，今因醉饱房劳，过伤精力，大泄其精，以致火动水涸，
又加生冷兼进，以致气血乖违，湿动痰生，肠胃痞塞，运化不通，气血凝滞而成痈也。
然则生痈之先，本肾水之不足，兹痈溃之后，又复流其水，是虚其虚矣。若作火毒
治，鲜不变为死证，必须大补肾水，并补脾胃之气，则脾胃化精生水更易枯涸也，肠
一旦得滂沱之润，自然沾足重苏，不治痈而痈已化，气血足而肌肉生也。加味六味
地黄汤以治之∶熟地二两，山药、山萸各八钱，丹皮六钱，泽泻一钱，白茯苓三钱，
人参、麦冬各一两，黄 五钱，水煎服，数剂疼止神健。（按六味补肾水，加参、 、麦冬，补
脾胃之土，土旺而肺自旺，肺与大肠相表里，又为肾之母，母子相需，表里相顾，故奏功如神也。）
王肯堂曰∶大肠痈多大便坠肿，初起发热恶风自汗，身皮甲错，按之腹内急痛。
Da Shegan Decoction (Great Belamcanda Decoction): Treats the initial formation of Stomach Abscess (Wei Yong).
Herbs: Belamcandae Rhizoma (Shegan), Cimicifugae Rhizoma (Shengma), Atractodis Macrocephalae Rhizoma (Baizhu), Paeoliae Radix Rubra (Chishaoyao), Poria (Chifuling), Gardeniae Semen (Shanzhiren).
Usage: Decoct in water, add honey and juice of Rehmanniae Radix Recens (Shengdijiazhi), mix well, and take orally.
Ganjie Decoction (Licorice and Platycodon Decoction): Treats Stomach Abscess complicated by phlegm-qi obstruction ascending.
Herbs: Glycyrrhizae Radix et Rhizoma (Gancao), Platcodonis Radix (Jiegeng), Ophiopogonis Radix (Maimendong) (each 1 liang).
Usage: Decoct in water and take orally.
Sanren Decoction (Three Seeds Decoction): Treats Stomach Abscess presenting with dark and difficult urination, abdominal fullness, and anorexia.
Herbs: Coicis Semen (Yiyiren), Persicam Semen (Taoren), Benincasae Semen Exsiccatum (Dongguaziren), Moutan Cortex (Mudanpi).
Usage: Decoct in water and take orally.
Shegan Decoction (Belamcanda Decoction)
Herbs: Belamcandae Rhizoma (Shegan), Cimicifugae Rhizoma (Shengma), Cornu Bubali (Xijiao), Ophiopogonis Radix (Maimendong), Scrophulariae Radix (Yuanshen), Rheomi Radix et Rhizoma (Dahuang) (each 1 qian); Mangxiao (Mirabilite), Gardeniae Fructus (Zhizi), Bambusae Folium (Zhuyezhe) (each 5 qian).
Usage: Decoct in water and take orally.
Chidou Yiren Decoction (Red Bean and Coix Seed Decoction)
Herbs: Phaseoli Semen Rubrum (Chixiaodou), Stephaniae Tetrandrae Radix (Fangji), Coicis Semen (Yiyiren), Glycyrrhizae Radix et Rhizoma (Gancao) (equal parts).
Usage: Decoct in water; take well after meals.
The Classic states: Dull pain at the Tianshu point indicates Large Intestine Carbuncle (Dachang Ju); slight elevation of the flesh at this location indicates Large Intestine Abscess (Dachang Yong). (Tianshu [ST25], also known as the Front-Mu point of the Large Intestine, is located 2 cun lateral to the umbilicus.)
Chen Yuan Gong said: Severe abdominal pain where the abdomen cannot be pressed, with the right leg flexed and unable to extend, is often mistaken by people for excessive internal heat and food stagnation. Who would know it is an abscess of the Large Intestine! In all cases of abdominal pain accompanied by inability to extend the legs, it is an intestinal abscess; in Large Intestine Abscess, the leg is particularly unable to extend. However, Large Intestine Abscess invariably arises from fire. When fire is excessive and does not dissipate, it condenses and forms an abscess. The excess of fire stems fundamentally from a deficiency of water. When water declines, fire flares up; without water to control it, fire nurtures toxicity. The treatment method need not target the fire directly; by strengthening water to control fire, the toxic factors will naturally dissipate. Qingchang Yin (Clear the Intestines Drink): Honeysuckle Flower (Jinyinhua) 3 liang, Angelicae Sinensis Radix (Danggui) 2 liang, Sanguisorbae Radix (Diyu), Ophiopogonis Radix (Maidong), Scrophulariae Radix (Yuanshen) each 1 liang, Coicis Semen (Yiren) 5 qian, Raw Licorice Root (Sheng Gancao) 3 qian, Scutellariae Radix (Huangqin) 2 qian. Decoct in water and take orally. After one dose, pain subsides slightly; after two doses, the leg can extend; after another two doses, the toxin is completely cleared. (This formula invigorates blood and resolves toxicity; although it drains fire, it essentially nourishes yin. The two complement each other, yielding miraculous effects. If one does not nourish yin to moisten the intestines but only attacks toxicity to drain fire, the Large Intestine will be damaged first, making it unable to withstand the scorching fire-toxin. No wonder treatment fails. *Bingjian*)
He further said: In Large Intestine Abscess, the right leg does not extend, abdominal pain is severe, pus and blood are discharged, and the anus feels like being cut by a knife; this indicates ulceration. Those who can eat survive; those who cannot eat die. However, among those who cannot eat, some cases are not due to blazing fire-toxin, and one should not abandon treatment simply because the patient cannot eat. For all carbuncles and sores, the presence of Stomach Qi is auspicious. Regardless of whether the toxin is yin or yang, if Stomach Qi is depleted, it is generally incurable. Therefore, for yin carbuncles, supporting Stomach Qi must be the primary priority. Adding a small amount of herbs to resolve pus and detoxify ensures that righteous qi is not injured, and fire-toxin disperses easily. Now, if the Large Intestine abscess has ruptured and there is no desire to eat, Stomach Qi is exhausted, representing a critical condition. Failing to urgently tonify the Stomach and instead only treating the abscess leads to death. Kaiwei Jiuwang Tang (Open the Stomach and Save from Collapse Decoction): Ginseng Radix et Rhizoma (Renshen), Dioscoreae Rhizoma (Shanyao), Coicis Semen (Yiren), Scrophulariae Radix (Yuanshen), Atractodis Macrocephalae Rhizoma (Baizhu) each 1 liang; Honeysuckle Flower (Jinyinhua) 2 liang; Raw Licorice Root (Sheng Gancao) 3 qian; Caprinae Sanguis (Shanyangxue) 1 qian, ground into powder. Decoct in water, mix with the powder, and take orally. After one dose, Stomach opens; after two doses, pus decreases; after three doses, pain stops; after four doses, complete recovery. (This formula saves the Stomach while resolving pus and detoxifying within it. Its brilliance lies in Honeysuckle Flower treating toxicity while still being a yin-nourishing herb, acting as the general who saves lives in sore diseases, a commander of utmost benevolence and courage. Assisted by Ginseng and Atractylodes, its ability to disperse toxins is divine. Goat Blood stops bleeding, quenches thirst, and promotes qi circulation, guiding other herbs directly into the abscess to disperse it. Harmonized together, with proper management, support, and attack, how could it fail? Naturally, Stomach Qi opens, transforming essence and transmitting it to the Large Intestine. If Stomach Qi is not yet damaged, the effect is even more pronounced. Do not doubt and refrain from using it, thereby wasting human life.)
He again said: In Large Intestine Abscess, there is severe lower abdominal pain, dribbling urination, mental fatigue, loss of taste, sallow complexion, weakness in the four limbs, spontaneous sweating, night sweats, and insomnia. People assume it is caused by excessive fire generating an abscess, but who knows it is actually water deficiency failing to moisten the intestines! The Large Intestine's ability to conduct relies entirely on the infusion of Kidney Water. Now, due to drunkenness, overeating, and sexual indiscretion, vital energy is excessively damaged, leading to massive depletion of essence. This causes fire to move and water to dry up. Combined with the intake of cold and raw foods, qi and blood become discordant, dampness stirs, phlegm generates, intestinal and gastric obstruction occurs, transformation and transportation cease, qi and blood stagnate, and an abscess forms. Thus, prior to the abscess forming, there was already a deficiency of Kidney Water. After the abscess ulcerates, further loss of water exacerbates the deficiency. If treated as fire-toxin, it rarely avoids becoming a fatal condition. One must greatly tonify Kidney Water and supplement Spleen and Stomach Qi. Then, the Spleen and Stomach's transformation of essence to generate water becomes easier, and the intestines, once receiving abundant moisture, will naturally recover. The abscess resolves without direct treatment, and as qi and blood become sufficient, muscles regenerate. Jia Wei Liuwei Dihuang Wan (Modified Six-Ingredient Pill with Rehmannia) to treat this: Prepared Rehmannia Root (Shudi) 2 liang, Dioscoreae Rhizoma (Shanyao), Corni Fruit (Shanzhuyu) each 8 qian; Moutan Cortex (Danpi) 6 qian, Alisma Rhizoma (Zexie) 1 qian, Poria (Baifuling) 3 qian; Ginseng Radix et Rhizoma (Renshen), Ophiopogonis Radix (Maidong) each 1 liang; Astragali Radix (Huangqi) 5 qian. Decoct in water and take orally. After several doses, pain stops and spirit strengthens. (Note: Liuwei Dihuang Wan tonifies Kidney Water; adding Ginseng, Astragalus, and Ophiopogon tonifies Spleen and Stomach Earth. When Earth is robust, Lung Metal flourishes naturally. The Lung and Large Intestine are exterior-interior partners, and the Lung is the mother of the Kidney. Mother and child support each other, and exterior-interior aspects care for one another, thus achieving miraculous results.)
Wang Kentang said: Large Intestine Abscess often presents with a sensation of heaviness and swelling during defecation. In the early stage, there is fever, aversion to wind, and spontaneous sweating. The skin is rough and scaly like fish scales, and pressing reveals acute pain within the abdomen.