陈文秀先生云∶痘疮泻水谷，或白色、或淡黄者，宜服十一味木香散，送肉豆蔻丸。若泻多津液内耗，血气不荣，
其疮虽起发，亦不能结靥。如身温腹胀，切牙喘渴者难治，缘津液枯耗，而饮水不止，荡散真气，故多死也，速与十一
味木香散救之，如不愈，急用十二味异功散。窃谓豆蔻丸治阳气虚寒滑泻之涩剂。盖肾主大便，若因肾气不固而致前症
者，宜用十一味木香散，或六君子汤送四神丸。若欲泻不泻，脾气虚而下陷也，用补中益气汤加肉豆蔻。饮食不化，手
足并冷，脾气虚寒也，用四君子汤加附子。
一小儿出痘泄泻，腹胀烦渴，饮沸汤而不知热，先君谓阳气虚寒，用十一味木香散二剂，泄泻顿止，饮汤嫌热，此
阳气复也，乃用六君、干姜、木香、归、 而靥。
一小儿痘疮愈后泄泻，饮食不化，此脾肾气虚，用六君、补骨脂、肉豆蔻，泻止，用参 四圣散，接补元气而痊。
一小儿发热饮冷，唇舌皱烈，泻粪秽臭。先君以为内蕴，用前胡枳壳散一剂稍愈；又用竹叶石膏汤加漏芦，乳母
服之，其儿顿安。
一小儿痘后作泻久不愈，而肌体骨立，此脾肾虚弱也，用二神丸、五味异功散渐愈，因停食吞酸作泻，肚腹重坠，
此脾气下陷也，先用补中益气汤为主，佐以五味异功散渐愈；又用参 四圣散、托里散，治其疮而痊。
一小儿出痘，发热燥渴，色黯出血，足热腰痛，此脾肾虚热，用圣济犀角地黄汤一剂，却用地黄丸料数剂而贯，又
用参 内托散而痊。
一小儿痘疮将愈，侵晨泄泻，饮食不化，余以为肾泻，朝用补中益气汤，夕用二神丸而愈。
四神丸 治脾肾虚弱，大便不化，饮食不思，或泄泻腹疼等症。
肉豆蔻（二两） 补骨脂（四两） 五味子（二两） 吴茱萸（浸炒，一两）
上为末，用水一钟，生姜八两，红枣一百枚，煮熟取枣肉，丸小豆大。每服二三十丸，食前白汤下。去五味子、吴
茱萸，名二神丸。
二神丸 治疮疡因脾肾阴虚泄泻。
补骨脂（四两） 肉豆蔻（二两生用）
上为末，用红枣四十九枚，生姜四两，水一钟，煮干取枣肉，丸桐子大。每服二三十丸，白滚汤下。
肉豆蔻丸 治泻水谷，或白或淡黄不能止者。
木香 缩砂仁（各二钱） 白龙骨（ ） 诃子肉（半两） 赤石脂（七钱半） 枯白矾（七钱半） 肉豆蔻（半
两）
上为末，糊丸黍米大。一周岁每服三五十丸，三岁儿服百丸，米饮下。泻甚者煎木香散或异功散送下。
竹叶石膏汤 治痘疮胸中烦热，小便赤涩，口干作渴，兼有赤 者，亦宜服犀角散。（方见顶陷心烦）
七味白术散 即人参白术散，方见后）
六君子汤
四君子汤
十一味木香散
十二味异功散（四方见痘灰白色）
托里散（方见痘痈）
五味异功散（方见寒战切牙）
前胡枳壳散（方见涕唾稠粘）
Mr. Chen Wenxiu stated: In cases of smallpox accompanied by diarrhea of watery stool mixed with undigested food, or where the stool is white or pale yellow, it is appropriate to administer Shiyiwei Muxiang San (Eleven-Ingredient Costus Root Powder) and take it with Roudoukou Wan (Nutmeg Pill). If severe diarrhea leads to internal depletion of body fluids and Qi and Blood failing to nourish the skin, even if the pustules have erupted, they will not form scabs. If the body is warm but the abdomen is distended, accompanied by teeth grinding, panting, and thirst, this is difficult to treat. This is because body fluids are exhausted; despite continuous drinking, thirst persists, scattering the True Qi, so death often ensues. One should quickly administer Shiyiwei Muxiang San to rescue the patient; if there is no improvement, urgently use Shi'erwei Yigong San (Twelve-Ingredient Yi Gong Powder). I consider Roudoukou Wan to be an astringent formula treating slippery diarrhea due to deficiency-cold of Yang Qi. Since the Kidney governs defecation, if the aforementioned symptoms are caused by insecurity of Kidney Qi, one should use Shiyiwei Muxiang San, or administer Six-Ingredient Gentlemen's Decoction (Liujunzi Tang) to send down Sishen Wan (Four Spirits Pill). If there is a sensation of needing to defecate but being unable to do so, this indicates deficiency and sinking of Spleen Qi; one should use Buzhong Yiqi Tang (Tonify the Middle and Augment the Qi Decoction) added with Nutmeg. If food is not digested and both hands and feet are cold, this indicates deficiency-cold of Spleen Qi; one should use Four-Ingredient Gentlemen's Decoction (Sijunzi Tang) added with Aconite Root (Fuzi).
A child suffering from smallpox developed diarrhea, abdominal distension, irritability, and thirst, drinking boiling water without feeling the heat. My father considered this to be deficiency-cold of Yang Qi and prescribed two doses of Shiyiwei Muxiang San, which immediately stopped the diarrhea. The child then found the soup too hot, indicating the recovery of Yang Qi. Subsequently, Liujunzi Tang, Dried Ginger (Ganjiang), Aromatic Costus Root (Muxiang), and Angelica Sinensis (Danggui) were used to facilitate scabbing.
Another child suffered from diarrhea after the resolution of smallpox, with inability to digest food. This was attributed to deficiency of Spleen and Kidney Qi. Liu Jun Zi Tang, Psoralea Fruit (Buguzhi), and Nutmeg were administered; once the diarrhea ceased, Shen Ling Sibai San (Ginseng and Poria Powder for the Four Sages) was used to replenish Yuan Qi, leading to recovery.
Another child presented with fever, preference for cold drinks, wrinkled and dry lips and tongue, and foul-smelling feces. My father diagnosed internal accumulation of heat and prescribed Qianhu Zhike San (Peucedanum and Aurantium Powder) for one dose, resulting in slight improvement. Then, Zhu Ye Shi Gao Tang (Bamboo Leaf and Gypsum Decoction) added with Rhapontic Rhizome (Loulu) was given to the nursing mother, bringing immediate relief to the infant.
Another child had prolonged diarrhea following smallpox, resulting in emaciation. This was diagnosed as weakness of the Spleen and Kidney. Ershen Wan (Two Spirits Pill) and Wuwei Yigong San (Five-Ingredient Yi Gong Powder) were used gradually to achieve improvement. Later, due to food stagnation causing acid regurgitation and diarrhea, along with a heavy bearing-down sensation in the abdomen, this was identified as sinking of Spleen Qi. Buzhong Yiqi Tang was used as the primary treatment, assisted by Wuwei Yigong San, leading to gradual recovery. Finally, Shen Ling Sibai San and Tuoli San (Support the Interior Powder) were used to treat the sores, resulting in full recovery.
Another child with smallpox exhibited fever, dryness, and thirst, dark-colored eruptions with bleeding, hot feet, and lower back pain. This was diagnosed as deficiency-heat of the Spleen and Kidney. Shengji Xijiao Dihuang Tang (Shengji Rhinoceros Horn and Rehmannia Decoction) was administered for one dose, followed by several doses of Dihuang Wan material to consolidate the effect, and finally, Shenqi Neituo San (Ginseng and Astragalus Internal Support Powder) was used for recovery.
Another child experienced morning diarrhea just as the smallpox was healing, with undigested food in the stool. I diagnosed this as Kidney Diarrhea. Bu Zhong Yi Qi Tang was administered in the morning, and Ershen Wan in the evening, leading to recovery.
Sishen Wan: Treats weakness of the Spleen and Kidney, undigested food in stool, loss of appetite, or diarrhea with abdominal pain.
Ingredients: Nutmeg (2 liang), Psoralea Fruit (4 liang), Schisandra Berry (2 liang), Evodia Fruit (soaked and stir-fried, 1 liang).
Preparation: Grind into powder. Use one zhong of water, 8 liang of fresh ginger, and 100 red dates. Boil until cooked, remove the date flesh, and make pills the size of mung beans. Take 20-30 pills before meals with plain boiled water. Removing Schisandra and Evodia yields Ershen Wan.
Ershen Wan: Treats diarrhea due to Yin deficiency of the Spleen and Kidney in the context of sores and ulcers.
Ingredients: Psoralea Fruit (4 liang), Nutmeg (2 liang, raw).
Preparation: Grind into powder. Use 49 red dates, 4 liang of fresh ginger, and one zhong of water. Boil until dry, remove the date flesh, and make pills the size of paulownia seeds. Take 20-30 pills with plain boiled water.
Roudoukou Wan: Treats diarrhea of water and grain, or white/pale yellow stools that cannot be stopped.
Ingredients: Aromatic Costus Root, Cardamom Seed (each 2 qian), White Dragon Bone (weight missing), Chebula Fruit (half liang), Red Kaolin (7.5 qian), Calcined Alum (7.5 qian), Nutmeg (half liang).
Preparation: Grind into powder and bind with paste to make pills the size of millet grains. For a one-year-old, take 30-50 pills; for a three-year-old, take 100 pills, washed down with rice drink. For severe diarrhea, decoct Muxiang San or Yigong San to wash down the pills.
Zhu Ye Shi Gao Tang: Treats smallpox with vexatious heat in the chest, red and scanty urine, dry mouth and thirst, accompanied by red macules. It is also suitable to use Xijiao San (Rhino Horn Powder). (Formula see "Sunken Crown and Vexatious Heart" section).
Qiwei Baizhu San: Also known as Ren Shen Baizhu San. (Formula see later).
Liujunzi Tang (Six-Ingredient Gentlemen's Decoction)
Sijunzi Tang (Four-Ingredient Gentlemen's Decoction)
Shiyiwei Muxiang San (Eleven-Ingredient Costus Root Powder)
Shi'erwei Yigong San (Twelve-Ingredient Yi Gong Powder) (The above four formulas see "Gray-White Smallpox" section).
Tuoli San (Support the Interior Powder) (Formula see "Smallpox Abscess" section).
Wuwei Yigong San (Five-Ingredient Yi Gong Powder) (Formula see "Chills and Teeth Grinding" section).
Qianhu Zhike San (Peucedanum and Aurantium Powder) (Formula see "Thick and Sticky Nasal Discharge and Saliva" section).