陈文宿先生云∶痘疹四五日不大便，以肥猪 白水煮熟，切豆大五七块与食之，滋润脏腑，疮痂易落，切不可妄
投宣利之药，恐真气内虚，疮毒入里。如六七日身壮热不大便，其脉紧盛，与三味消毒饮微利之。窃谓∶前症若毒在肌
肉而未能尽发，脉浮而紧者，最宜此药疏解其毒。若脉沉而
紧者，宜用前胡枳壳散疏通毒瓦斯，以绝其源。若口舌咽喉肿痛，疮毒甚也，用射干鼠粘子汤。若大便既通，作渴饮汤，
脾胃气虚也，用人参白术散。凡燥粪在直肠不能下者，宜用猪胆汁导之，忌用疏利之剂，恐复伤胃气，则疮未出者不能
发出，已出者不能贯靥。大抵分辨虚实，当以手足冷热，或饮水饮汤验之。
一小儿大便不通，痘赤作痛，发热作渴，手足并热，此余毒内作，用前胡枳壳散一剂，大便随通，诸症顿退；又与
六味活血散而愈。
一小儿痘疮发热作渴， 赤胀痛，大便秘结，此热毒在内，先用清凉饮一剂，诸症稍退；又用鼠粘子汤一剂，诸症
全退；再用紫草快 汤而贯脓，更用消毒饮而痘靥。
一小儿痘赤狂喘，大便不利，此胃经有热，先君治以犀角地黄汤芹莱汁而痊。
四顺清凉饮 治积热颊赤作渴，四肢惊掣，大便秘涩。
赤芍药 当归 甘草 大黄（各等分）
上每服一钱，水煎。
按∶清凉饮乃苦甘疏泻内热之剂。若热毒在内，大便不通，表无他症，宜用之。连翘饮乃苦寒发表内疏之剂，若表
里实热，烦渴饮冷，大便不通，小便秘结者宜用之，不可过剂。恐妄发则成 烂，妄下则成虚脱也。
消毒饮
荆芥（二钱） 防风 牛蒡子（各一钱五分） 甘草（一钱）
上水煎，量服之。
射干鼠粘子汤（方见痘咽痛）
三味消毒饮
人参白术散（二方见靥发热）
前胡枳壳散（方见涕唾稠粘）
六味活血散（方见痘痈）
紫草快 汤
清凉饮
消毒饮（三方见大便不通）
犀角地黄汤（方见顶陷心烦）
Mr. Chen Wensu said: If a child with smallpox has not had a bowel movement for four or five days, boiled lean pork in plain water, cut into pieces the size of beans (about 5-7 pieces), and let the child eat it to moisten the zang-fu organs, facilitating the falling of scabs. One must absolutely avoid recklessly administering purgative or laxative medicines, lest this deplete the true qi internally and cause the toxin to sink inward. If after six or seven days the body has high fever and no bowel movement, and the pulse is tight and vigorous, administer Sanwei Xiaodu Yin (Three-Ingredient Toxin-Resolving Decoction) to gently promote evacuation. I suggest: For the aforementioned symptoms, if the toxin is in the muscles and has not fully erupted, and the pulse is floating and tight, this medicine is most suitable to disperse and resolve the toxin. If the pulse is deep and tight, Qianhu Zhike San (Peucedanum and Bitter Orange Powder) should be used to unblock the toxic qi, cutting off the source. If there is swelling and pain in the mouth, tongue, and throat, indicating severe toxin, use Shegan Niuzibang Tang (Belamcanda and Burdock Decoction). If the bowel movement has already cleared, but thirst and desire for warm drinks persist, this indicates deficiency of Spleen and Stomach qi; Ren Shen Bai Zhu San (Ginseng and Atractylodes Macrocephala Powder) should be used. For dry feces stuck in the rectum unable to pass, pig bile suppository method is appropriate; avoid using purgative agents, lest they further damage Stomach qi, causing un-erupted lesions to fail to emerge and erupted lesions to fail to crust over. Generally, to distinguish between excess and deficiency, one should verify by observing the temperature of the hands and feet, or by asking about the desire to drink water or warm fluids.
One child presented with constipation, red and painful lesions, fever, thirst, and hot extremities. This was residual toxin acting internally. After one dose of Qianhu Zhike San, the bowels moved freely, and all symptoms subsided immediately. Subsequently, Liuwei Huoxue San (Six-Ingredient Blood-Invigorating Powder) was administered, leading to recovery.
Another child presented with fever and thirst due to smallpox, red and swollen painful lesions, and constipation. This indicated internal heat toxin. Initially, Qingliang Yin (Cooling Drink) was given for one dose, slightly reducing symptoms. Then, Niuzibang Tang (Burdock Decoction) was given for one dose, completely resolving symptoms. Next, Zicao Kuiban Tang (Arnebia Rapid-Eruption Decoction) was used to promote suppuration, followed by Xiaodu Yin (Toxin-Resolving Decoction) to facilitate crusting.
Another child presented with red lesions, manic panting, and difficult defecation. This indicated heat in the Stomach meridian. My father treated him with Xijiao Dihuang Tang (Rhinoceros Horn and Rehmannia Decoction) combined with Celery Juice, resulting in recovery.
Sishun Qingliang Yin (Four-Harmony Cooling Drink): Treats accumulated heat causing facial redness, thirst, limb convulsions/tremors, and constipation.
Ingredients: Chi Shaoyao (Red Peony Root), Danggui (Angelica Sinensis), Gancao (Licorice Root), Dahuang (Rhubarb Root and Rhizome) (equal parts).
Usage: Take one qian per dose, decoct in water.
Note: Qingliang Yin is a bitter-sweet formula that drains internal heat. It is suitable when heat toxin is internal, causing constipation, without external symptoms. Lianqiao Yin (Forsythia Decoction) is a bitter-cold formula that releases the exterior and drains internally. It is suitable for excess heat in both interior and exterior, accompanied by irritability, thirst for cold drinks, constipation, and scanty dark urine. Do not overdose. Reckless sweating may lead to ulceration, while reckless purging may lead to collapse.
Xiaodu Yin: Jingjie (Schizonepeta Spike), Fangfeng (Saposhnikovia Root), Niuzibang (Burdock Fruit) (each 1.5 qian), Gancao (Licorice Root) (1 qian).
Usage: Decoct in water, take according to condition.
Shegan Niuzibang Tang (See "Smallpox Throat Pain" section)
Sanwei Xiaodu Yin (Three-Ingredient Toxin-Resolving Decoction)
Ren Shen Bai Zhu San (Two formulas see "Crusting Fever" section)
Qianhu Zhike San (See "Thick Sticky Phlegm/Saliva" section)
Liuwei Huoxue San (See "Smallpox Abscess" section)
Zicao Kuiban Tang (Arnebia Rapid-Eruption Decoction)
Qingliang Yin (Cooling Drink)
Xiaodu Yin (Three formulas see "Constipation" section)
Xijiao Dihuang Tang (See "Vertex Depression and Restlessness" section)