【方歌】小儿脱肛肺虚源，补中益气汤居先，肿硬作痛除积热，
脏毒翻肛脏连丸。
【注】此证由小儿气虚，肛脱于外，用补中益气汤加羌活、白
芍、煨姜主之。如肿硬疼痛者，有湿热在内，当用清热
除湿之剂以清之。若生脏毒，肛门翻出者，以脏连丸为
主。外治以五倍子、老葱头、朴硝煎汤洗之。肿用坎宫
锭子涂之，俱效。
方剂：补中益气汤（见溃疡门）
脏连丸（见臀部痔疮门）
坎宫锭子（见肿疡门）
【方歌】肛门作痒系虫伤，下唇必生小白疮，九味芦荟丸与服，
外撒铜绿共雄黄。
【注】此证系小儿肛门作痒，由虫蚀也。视其下唇内，必生小
白疮；或耳之前后，结小核如串珠者是也。书曰：下唇
有疮，虫蚀其肛，宜用芦荟丸服之。外用雄黄、铜绿等
分为末，撒之即效。
方剂：芦荟丸（见齿部牙衄）
【方歌】遗毒禀受结胎先，无皮身赤未易痊，肌肤红点次斑烂，
染受尚可禀毒难。
【注】此证系先天遗毒于胞胎，有禀受、染受之分。禀受者由
父母先患杨梅，而后结胎元，婴儿生后，则周身色赤无
皮，毒攻九窍，以致烂斑，患此难愈，百无一生。染受
者，乃先结胎元，父母后患杨梅，毒气传于胎中，婴儿
既生，则头上坑凹，肌肤先出红点，次发烂斑，甚者毒
攻口角、眼眶、耳鼻，及前阴、谷道破烂。初宜人中黄
细末三五分，土茯苓煎汤调稠，日用二三服。肿用太乙
紫金锭散水磨涂之。破烂者用黄柏蜜炙为末撒之，干用
香油调搽。投药应效者，后服二黄散，十中可保三四。
若毒延遍身，日夜多啼，不吃乳食者，属毒甚气微，终
难救治。
方剂：二黄散
组成：胡黄连 山慈茹（各二钱）
甘草（生，一钱五分） 牛黄（七分）
上为细末，每服三分，蜜汤调服。
【方歌】二黄散治遗毒方，胡连甘草共牛黄，山慈菇研为细末，
每服三分加蜜汤。
又方：太乙紫金锭（见胸部脾发疽）
【方歌】小儿脱肛源于肺气虚弱，治疗首选补中益气汤；若伴有肿胀坚硬疼痛，则是体内积热所致，应使用脏连丸。
【注】此证候是由于小儿气虚，导致肛门脱出体外，治疗应用补中益气汤加入羌活、白芍、煨姜来主治。如果出现肿胀坚硬且疼痛的症状，说明体内有湿热，应当使用清热除湿的方剂进行清理。如果发生脏毒（直肠部位的毒邪），导致肛门翻出，则以脏连丸为主治方药。外治法可用五倍子、老葱头、朴硝煎汤清洗患处。肿胀处涂抹坎宫锭子，均有效果。
方剂：补中益气汤（见溃疡门）
脏连丸（见臀部痔疮门）
坎宫锭子（见肿疡门）
【方歌】肛门瘙痒由虫蚀引起，下唇内侧必定会长出小白疮，内服九味芦荟丸，外用铜绿与雄黄粉末撒敷。
【注】此证候表现为小儿肛门瘙痒，是由寄生虫侵蚀所致。观察其下唇内部，必定会长出小白疮；或者在耳朵前后出现小结节，像串珠一样排列。医书说：下唇有疮，是虫蚀肛门的表现，适宜服用芦荟丸。外用雄黄、铜绿等分研成细末，撒在患处即刻见效。
方剂：芦荟丸（见齿部牙衄）
【方歌】先天遗毒在胎儿时期就已形成，患儿皮肤赤红无皮，难以治愈；肌肤出现红点随后溃烂，若是后天感染尚可救治，若是先天禀受胎毒则难治。
【注】此证候是先天遗毒在胞胎中形成，分为禀受（遗传性）和染受（感染性）两种情况。禀受者是因为父母先患有杨梅疮（梅毒），之后才受孕怀胎，婴儿出生后，全身皮肤赤红无皮，毒邪攻犯九窍，导致溃烂斑痕，患此病很难痊愈，百人中难救一人。染受者，是先受孕怀胎，父母后来患上杨梅疮，毒气传入胎中，婴儿出生后，头部出现凹陷坑洼，肌肤先出红点，随后发为烂斑，严重的毒邪攻犯口角、眼眶、耳鼻，以及前阴、谷道（肛门）破烂。初期宜用人中黄研成细末三至五分，用土茯苓煎汤调成稠状，每日服用二至三次。肿胀处用太乙紫金锭散加水磨涂。破烂处用蜜炙黄柏研末撒敷，干燥时用香油调和搽擦。用药后见效的，后续服用二黄散，十人中可保三四。如果毒邪蔓延全身，日夜啼哭不止，不吃乳食，属于毒邪极盛而正气微弱，最终难以救治。
方剂：二黄散
组成：胡黄连、山慈菇（各二钱）
甘草（生用，一钱五分）、牛黄（七分）
以上药材研为细末，每次服用三分，用蜜汤调服。
【方歌】二黄散是治疗遗毒的方剂，胡黄连、甘草与牛黄共同使用，山慈菇研为细末，每次服用三分加蜜汤。
又一方：太乙紫金锭（见胸部脾发疽）
[Formula Song] The prolapse of the anus in children originates from Lung Qi deficiency; Bu Zhong Yi Qi Tang (Tonify the Middle and Augment the Qi Decoction) is the first choice. If swelling, hardness, and pain occur, it indicates accumulated heat; Zang Lian Wan (Intestine-Connected Pill) should be used.
[Annotation] This condition arises from Qi deficiency in children, causing the anus to prolapse externally. It should be treated with Bu Zhong Yi Qi Tang (Tonify the Middle and Augment the Qi Decoction) added with Qiang Huo (Notopterygii Rhizoma et Radix), Bai Shao (Paeoniae Radix Alba), and Wei Jiang (Prepared Ginger). If there is swelling, hardness, and pain, it indicates damp-heat internally; a formula that clears heat and drains dampness should be used. If Zang Du (Visceral Toxin) occurs, causing the anus to evert, Zang Lian Wan (Intestine-Connected Pill) is the primary treatment. For external treatment, wash the area with a decoction of Wu Bei Zi (Galla Chinensis), Lao Cong Tou (Allii Cepae Bulbus), and Po Xiao (Natrii Sulfas). Apply Kan Gong Ding Zi (Kan Palace Ointment) for swelling; all are effective.
Formulas: Bu Zhong Yi Qi Tang (See Ulcer Section); Zang Lian Wan (See Buttock Hemorrhoid Section); Kan Gong Ding Zi (See Swelling/Ulcer Section).
[Formula Song] Anal itching is caused by worm infestation; small white sores will definitely appear on the lower lip. Take Jiu Wei Lu Hui Wan (Nine-Arholtia Pill) internally, and sprinkle Tong Lv (Malachite) and Xiong Huang (Realgar) externally.
[Annotation] This condition presents as anal itching in children, caused by parasitic erosion. Inspect the inner lower lip, where small white sores must appear; or small nodules may form before and behind the ears, resembling a string of beads. Medical texts state: Sores on the lower lip indicate worms eroding the anus; Arholtia Pill should be taken. Externally, grind Xiong Huang (Realgar) and Tong Lv (Malachite) into equal parts of fine powder and apply it to the affected area for immediate effect.
Formula: Lu Hui Wan (Arholtia Pill) (See Dental Gingival Bleeding Section).
[Formula Song] Congenital residual toxin forms in the fetus initially; the body is red without skin, making recovery difficult. Red spots appear on the skin followed by ulceration. Acquired infection can still be cured, but congenital toxin is hard to treat.
[Annotation] This condition involves congenital residual toxin formed in the womb, divided into "Bing Shou" (Inherited/Genetic) and "Ran Shou" (Acquired/Infected) types. In the "Bing Shou" type, the parents suffered from Yang Mei Chuang (Syphilis) before conception; after birth, the infant's whole body is red and skinless, with toxin attacking the nine orifices, leading to ulceration and maceration. This condition is difficult to cure, with less than one survivor out of a hundred. In the "Ran Shou" type, conception occurred first, and the parents contracted Yang Mei Chuang (Syphilis) later; the toxin transmitted to the fetus. After birth, the infant has pitted depressions on the head, red spots appearing on the skin first, followed by ulceration. Severe cases involve toxin attacking the corners of the mouth, eye sockets, ears, nose, anterior yin, and Gu Dao (anus), causing breakdown. Initially, use Ren Zhong Huang (Calculus Humanis) finely powdered (3-5 fen), mixed with a thick decoction of Tu Fu Ling (Smilacis Glabrae Rhizoma), administered 2-3 times daily. For swelling, apply Tai Yi Zi Jin Ding (Taiyi Purple Gold Pill) dissolved in water. For broken skin, apply Mi Zhi Huang Bo (Honey-fried Phellodendri Cortex) powder; if dry, mix with Sesame Oil for application. If the medication proves effective, subsequently administer Er Huang San (Two-Yellow Powder); three or four out of ten patients can be saved. If the toxin spreads throughout the body, with constant crying day and night and refusal to feed, it indicates extreme toxin and faint Qi, which is ultimately untreatable.
Formula: Er Huang San (Two-Yellow Powder).
Composition: Hu Huang Lian (Coptidis Rhizoma) and Shan Ci Ru (Fritillariae Thunbergii Bulbus) (each 2 qian); Gan Cao (Licorice Root, raw, 1.5 qian); Niu Huang (Calculus Bovis) (0.7 fen).
Grind all ingredients into a fine powder. Each dose is 3 fen, taken with honey water.
[Formula Song] Er Huang San (Two-Yellow Powder) treats residual toxin; Hu Lian (Coptidis Rhizoma), Gan Cao (Licorice Root), and Niu Huang (Calculus Bovis) are combined. Shan Ci Gu (Fritillariae Thunbergii Bulbus) is ground into fine powder; each dose is 3 fen taken with honey water.
Another Formula: Tai Yi Zi Jin Ding (Taiyi Purple Gold Pill) (See Chest Splea Abscess Section).