脱肛者。肺实热则秘结。肺虚寒则脱出。用补中益气汤。加羌活、白芍、煨姜主之。又绯红作痛者。血虚有
热也。佐以丹皮、四物。微红作痛者。气虚有热也。佐以丹皮、四君。再审手足。指热属胃热。指寒属胃寒。宜
消息之。积热者。升麻一两。条芩六钱。水煎服。
蛤硝散 洗脱肛。
文蛤四两。水五碗。煎汤。入朴硝四两。通手淋洗。至水冷方止。若觉热痛。用熊胆加冰片水化涂之。或
用收肛散。（见痔漏门）
一用荔枝核为末托之。一用陈年酱萝卜片托之。一用坎宫锭子涂之。
肛门作痒。虫也。视其下唇内。必生小白疮。或耳之前后。结小核如贯珠者是也。书云。下唇有疮。虫蚀其
肛。宜九味芦荟丸服之。外以雄黄、铜绿等分为末掺之。
芦苍丸（见府症门）
遗毒者初生如点。次成烂斑。甚则口角眼眶面鼻及谷道等处俱伤。由乳母传染者轻。父母遗体者重。
初生时。用井水调白矾。令母口含水吮之。一吸一换。使毒聚一处。磨紫金锭涂之。破烂者。用黄柏蜜炙
为末掺之。干用香油调搽。内以人中黄末。每用分许。每日五七次。煎土茯苓汤调服。或服二黄散。再与
痘里夹疮门参考。
二黄散 治小儿遗毒。
牛黄（七分） 胡黄连 山兹菇（各二钱） 甘草（一钱五分）
上为细末。每服三二分。蜜汤调服。
紫金锭
脱肛，是指直肠黏膜、肛管、直肠全层，甚至部分乙状结肠向下移位并脱出肛门外的一种病证。若肺经实热，则导致大便秘结；若肺经虚寒，则导致脏器脱出。治疗应使用补中益气汤，加入羌活、白芍、煨姜为主方。如果脱出物颜色绯红且伴有疼痛，这是血虚兼有内热的表现，可辅助使用牡丹皮和四物汤（补血调血的基础方剂）；如果颜色微红且伴有疼痛，这是气虚兼有内热的表现，可辅助使用牡丹皮和四君子汤（补气健脾的基础方剂）。再仔细诊察手足：手指发热属于胃热，手指发凉属于胃寒，应当根据具体情况斟酌处理。若是积热所致，可用升麻一两、黄芩六钱，水煎后服用。
蛤硝散：用于清洗脱出的肛门。取文蛤四两，加水五碗，煎煮成汤，加入朴硝四两，趁温热时淋洗患处，直到药液变冷才停止。如果感觉热痛，可用熊胆加冰片用水化开后涂抹。或者使用收肛散（见痔漏章节）。另一种方法是用荔枝核研末托举脱出物；另一种方法是用陈年的酱萝卜片托举；还有一种方法是用坎宫锭子涂抹。
肛门瘙痒，是由虫邪引起。观察患者下唇内侧，必定生有小疮；或者在耳前耳后出现小结节，像串珠一样，这就是虫蚀的表现。古籍记载：“下唇有疮，虫蚀其肛。”适宜服用九味芦荟丸。外用雄黄、铜绿等分研末撒敷。芦苍丸（见瘰疬章节）。
遗毒，是指新生儿初生时皮肤如点状红斑，随后形成糜烂斑片，严重时口角、眼眶、面部、鼻部以及肛门等处均受损伤。由乳母传染者病情较轻，由父母遗传胎毒者病情较重。初生时，用井水调和白矾，让母亲含在口中吮吸患儿患处，一吸一换，使毒邪聚集在一处，然后磨紫金锭涂抹。若已破烂，用黄柏蜜炙后研末撒敷；干燥时用香油调匀搽涂。内服人中黄末，每次少许，每日五至七次，用土茯苓汤调服。或者服用二黄散。此外，还可参考痘疹夹疮章节的内容。
二黄散：治疗小儿遗毒。牛黄（七分）、胡黄连、山慈菇（各二钱）、甘草（一钱五分）。以上药物研为细末，每次服用二三钱，用蜂蜜水调服。紫金锭。
Rectal prolapse refers to a condition where the rectal mucosa, anal canal, full thickness of the rectum, or even part of the sigmoid colon shifts downward and protrudes outside the anus. If there is excess heat in the Lung channel, it leads to constipation; if there is deficiency cold in the Lung channel, it leads to prolapse. The treatment should utilize Buzhong Yiqi Tang (Tonify the Middle and Augment the Qi Decoction), with Qianghuo (Notopterygii Rhizoma et Radix), Baishao (Paeoniae Radix Alba), and Wei Jiang (Prepared Ginger) added as the primary formula. If the prolapsed tissue is crimson red and painful, this indicates blood deficiency with internal heat; auxiliary treatment with Mudanpi (Moutan Cortex) and Siwu Tang (Four Substances Decoction) is appropriate. If the color is slightly red and painful, this indicates qi deficiency with internal heat; auxiliary treatment with Mudanpi and Sijunzi Tang (Four Gentlemen Decoction) is appropriate. Further carefully examine the hands and feet: warmth of the fingers belongs to Stomach heat, while coldness of the fingers belongs to Stomach cold; one should exercise discretion in handling these cases. If caused by accumulated heat, use Shengma (Cimicifugae Rhizoma) 1 liang and Huangqin (Scutellariae Radix) 6 qian, decocted in water for oral administration.
Gexiao San (Clam and Niter Powder): Used to wash the prolapsed anus. Take Wen Ge (Venerable Clam Shell) 4 liang, add 5 bowls of water, decoct into a soup, then add Puxiao (Mirabilite) 4 liang. Wash the area with the solution while it is warm enough to tolerate with the hand, stopping only when the liquid becomes cold. If heat and pain are felt, apply Xiongdan (Ursus Bile) mixed with Bingpian (Borneolum Syntheticum) dissolved in water. Alternatively, use Shou Gang San (Anus Retention Powder) (see Hemorrhoids and Fistula section). Another method is to use Lychee Seed powder to support the prolapse; another method is to use aged pickled radish slices to support it; yet another method is to apply Kangong Dingzi (Kangong Plaster).
Anal pruritus is caused by parasitic pathogens. Inspect the inner aspect of the lower lip; small sores will definitely be present there. Alternatively, small nodules may appear anterior and posterior to the ears, resembling beads on a string; this is the manifestation of parasitic erosion. Ancient texts state: "Sores on the lower lip indicate parasites eroding the anus." It is suitable to administer Jiwei Lujian Wan (Nine-Ingredient Aloe Pill). Externally, apply Xionghuang (Realgar) and Tonglv (Chrysocolla) ground into equal parts as powder. Lucang Wan (see Scrofula section).
Yidu (Congenital Venereal Poison/Hereditary Toxin) initially presents as dot-like lesions, which subsequently develop into ulcerated patches. In severe cases, the corners of the mouth, eye sockets, face, nose, and anus are all affected. Transmission from the wet nurse results in mild disease, whereas inheritance from parents' congenital toxin results in severe disease. At birth, mix Bai Fan (Alumen) well water, have the mother hold the mixture in her mouth to suckle the affected area of the infant, changing after each suction, to concentrate the toxin in one place, then apply Zijin Ding (Purple Gold Plaster) rubbed from water. If the skin is broken, apply Huangbai (Phellodendri Cortex) that has been honey-fried and powdered; if dry, mix with sesame oil for application. Internally, administer Renzhong Huang (Human Urine Sediment) powder, a small amount each time, five to seven times daily, taken with Tu Fuling (Smilacis Glabrae Rhizoma) decoction. Alternatively, administer Erhuang San (Two-Yellow Powder). For further reference, consult the chapter on Measles with Complicated Sores.
Erhuang San (Two-Yellow Powder): Treats pediatric Yidu. Niuhuang (Bovis Calculus) (7 fen), Huhuanglian (Picrorhizae Rhizoma), Shancigu (Swertiae Herba) (each 2 qian), Gancao (Glycyrrhizae Radix et Rhizoma) (1.5 qian). Grind the above ingredients into a fine powder. Each dose is 2–3 qian, taken with honey water. Zijin Ding (Purple Gold Plaster).