（总括 肛门露出久难收，再感风伤事可忧；况是先传脾胃弱，更详冷热易为瘳。）
夫肺与大肠相为表里，肛者，大肠之魄门是也。
巢氏曰∶实热则为大便闭结，虚寒则肛门脱出。有因痢久，里急后重，努力肛开，为外风所吹。或伏暑作泻，肠滑
不禁。或禀赋怯弱，易于感冷，亦令大肠虚脱。凡小儿所患泻病，皆因暑湿风热，乘脾胃虚而得。盖风属木，肝木胜则
制土，土主脾胃，虚而受制。又湿喜伤脾，因虚受湿，不能分别清浊，水谷交杂则为洞泻。洞泻既久，大肠亦虚。大肠
乃手阳明燥金，土虚不能生金，金气既虚则传送之道亦虚。或又为风冷所袭，致肛门脱而不收。法当补脾温胃，宜补中
益气汤倍加木香、白芍、粟壳、砂仁、地榆之类，外用伏龙肝敷之及蓖麻膏贴囟门使引上，令其自收，如收尽仍以水洗
去其膏。及有湿热积滞于大肠，未经疏荡亦成此疾，宜芍药汤少加大黄以泻其积滞之气，痢止而肛不复脱矣，外宜蟠龙
散敷之。大凡手足指热者属热，指寒者属虚，亦是一看法。
久痢不止，将核桃壳烧灰存性为末，看大小，酒服之。或用山楂为末，红者白糖拌，白者红糖拌亦妙。
大抵治痢疾，一二日元气未虚，治宜疏通积滞，此通因通用之法。三四日后不可疏通，恐元气虚也，当清热解毒、
调养脾胃为主。
〔附方〕
补中益气汤 白术 当归 人参 陈皮 柴胡 升麻 黄 甘草
伏龙肝（治阴症） 伏龙肝（一两） 鳖头骨（一钱半） 百药煎（二钱）
共焙为末，用一钱至三钱，煎紫苏汤待温洗，
和清油调敷患处，先用荆芥、生葱、五倍子末，煎水候温浴之，轻与擦干，然后敷药。
芍药汤 白芍 泽泻 薄桂 甘草
蟠龙散 干地龙（蟠如钱样者佳，一两） 风化朴硝（二钱）
净方 香附 荆芥 皂角 煎水净。
又方 五倍末 朴硝 大腹皮 煎水净，以赤石脂末之掺芭蕉叶，托上亦好。
(General Summary: Prolapse of the anus that persists for a long time is difficult to retract; if complicated by wind invasion, the condition is worrying. Moreover, since the Spleen and Stomach are already weak, careful differentiation of cold and heat patterns makes it easier to cure.)
The Lung and Large Intestine have an exterior-interior relationship. The anus is the "Gate of the Corporeal Soul" (Po Men), which is the excretory opening of the Large Intestine.
Chao Yuan-fang stated: Excess-heat leads to constipation, while deficiency-cold leads to anal prolapse. Some cases arise from prolonged dysentery, characterized by tenesmus (urgent need to defecate with heavy sensation in the rectum), where straining causes the anus to open and be exposed to external wind. Others result from latent summerheat causing diarrhea, leading to intestinal laxity and incontinence. Some individuals have congenital weakness and are prone to cold invasion, also causing deficiency-depletion of the Large Intestine. All diarrheal diseases in children are caused by summerheat-dampness and wind-heat taking advantage of Spleen-Stomach deficiency. Wind belongs to Wood; when Liver-Wood is excessive, it overacts on Earth. Earth governs the Spleen and Stomach; when deficient, it is controlled. Dampness tends to damage the Spleen; due to deficiency, dampness invades, impairing the ability to separate the clear from the turbid. Water and food mix together, resulting in profuse watery diarrhea (Dong Xie). After prolonged Dong Xie, the Large Intestine becomes deficient. The Large Intestine corresponds to Hand-Yangming Dry Metal. When Earth is deficient, it cannot generate Metal; once Metal Qi is deficient, the pathway of transportation and transformation also becomes weak. If additionally attacked by wind-cold, the anus may prolapse and fail to retract. The treatment method should tonify the Spleen and warm the Stomach. Bu Zhong Yi Qi Tang (Tonify the Middle and Augment the Qi Decoction) should be used with doubled amounts of Mu Xiang (Aucklandiae Radix), Bai Shao (Paeoniae Radix Alba), Yu Ke (Pericarpium Papaveris), Sha Ren (Amomi Fructus), and Di Yu (Sanguisorbae Radix). Externally, Fu Long Gan (Caudex Dragoni) can be applied, and Bi Ma Gao (Ricinus Paste) can be pasted onto the anterior fontanelle to guide the qi upward, allowing spontaneous retraction. Once fully retracted, wash off the paste with water. If there is accumulation of damp-heat in the Large Intestine without prior purgation, this disease may also occur. Shao Yao Tang (Peony Decoction) with a small amount of Da Huang (Rhei Radix et Rhizoma) added can purge the accumulated qi. Once dysentery stops and the anus no longer prolapses, Pan Long San (Coiling Dragon Powder) can be applied externally. Generally, hot fingers and toes indicate heat patterns, while cold fingers and toes indicate deficiency patterns; this is another diagnostic criterion.
For chronic dysentery that does not cease, burn walnut shells to ash while preserving their medicinal properties, grind into powder, and administer with wine according to age. Alternatively, use Hawthorn (Shan Zha) powder mixed with white sugar for red hawthorns or brown sugar for white hawthorns, which is also effective.
Generally, treating dysentery: within one or two days, when vital energy (Yuan Qi) is not yet depleted, treatment should focus on unblocking accumulations, employing the method of "treating obstruction with unblocking agents" (Tong Yin Tong Yong). After three or four days, do not use unblocking methods, as vital energy may be depleted; instead, prioritize clearing heat and detoxifying, and regulating the Spleen and Stomach.
[Attached Formulas]
Bu Zhong Yi Qi Tang (Tonify the Middle and Augment the Qi Decoction): Bai Zhu (Atractylodis Macrocephalae Rhizoma), Dang Gui (Angelicae Sinensis Radix), Ren Shen (Ginseng Radix), Chen Pi (Citri Reticulatae Pericarpium), Chai Hu (Bupleuri Radix), Sheng Ma ( Cimicifugae Rhizoma), Huang Qi (Astragali Radix), Gan Cao (Glycyrrhizae Radix et Rhizoma).
Fu Long Gan (for Yin Syndromes): Fu Long Gan (Caudex Dragoni, 1 liang), Bie Tou Gu (Ossis Testudinis Caput, 1 qian 5 fen), Bai Yao Jian (Fermum, 2 qian).
Roast all ingredients until dry and grind into powder. Use 1 to 3 qian, decoct Zi Su Tang (Perillae Leaf Decoction), wait for it to cool, and wash the affected area. Mix with clear sesame oil and apply topically. First, decoct Jing Jie (Schizonepetae Herba), raw Cong Bai (Allii Fistulosi Bulbus), and Wu Bei Zi (Galla Chinensis) powder in water, wait for warmth, and bathe the area. Gently dry, then apply the medicine.
Shao Yao Tang (Peony Decoction): Bai Shao (Paeoniae Radix Alba), Ze Xie (Alismatis Rhizoma), Bo Gui (Cinnamomi Cortex Thin), Gan Cao (Glycyrrhizae Radix et Rhizoma).
Pan Long San (Coiling Dragon Powder): Gan Di Long (Pheretima, preferably coiled like a coin, 1 liang), Feng Hua Pu Xiao (Natrii Sulfas Efflorescens, 2 qian).
Jing Fang (Cleansing Formula): Xiang Fu (Cyperi Rhizoma), Jing Jie (Schizonepetae Herba), Zao Jiao (Gleditsiae Fructus). Decoct in water for cleansing.
Another Formula: Wu Bei Zi powder, Pu Xiao (Natrii Sulfas), Da Fu Pi (Arecae Pericarpium). Decoct in water for cleansing. Sprinkle Chi Shi Zhi powder (Halloysit Rubra) onto a banana leaf to support and lift the prolapsed tissue, which is also effective.