产后惊风。加茯苓、天麻、防风、黄 、官桂、甘草（各等分）去地黄、有痰。加半夏、
陈皮（各一钱）。
产后痢。加黄芩、桂枝、枳壳、木香、槟榔（各七分）、去地黄。
产后多汗。加黄 （一钱）、桂枝（五分）。
产后血风。四肢螈 。加天麻、荆芥穗（各一钱）。
产后恶露。欲行不行。作痛。加牡丹皮、玄胡索、红花、泽兰叶、官桂（各等分）、五灵脂
产后咳嗽。加旋复花、前胡、杏仁、白茯苓、陈皮，去地黄、芍药。
产后心虚。怔忡不定。言语错乱。加人参、茯神、远志、麦门冬（各一钱）、甘草（三分）、
去白芍药、地黄。
产后恶露不行。结成块。疼痛不可忍。加没药、血结、官桂、桃仁、红花（各等分）、莪术
、五灵脂。
产后浮肿。加白术、白茯苓、陈皮、大腹皮（各一钱）、去地黄、鲤鱼汤煎
产后脐腹痛。加炒干姜、官桂、香附、没药（各等分）。
产后血块痛。加蒲黄、玄胡索、牡丹皮（各等分）、官桂（少许）。
产后泻。本方。去当归、地黄，加白术、茯苓、陈皮（各一钱）、甘草（少）、干姜、白扁
豆（各七分）。
乳不通。加白芷、青皮（各七分）、木通、穿山甲（炙各一钱）。
恶露不止。加炒黑蒲黄、白芷、百草霜、荆芥穗、地榆（各等分）。
小儿血热。加黄连、连翘（各六分）。
小儿痘疮不活。血少故也。加黄 （一钱）、桂（三分）、紫草（五分）。
小儿尾骨病。加山药、知母（酒炒）、桂（少许）。
疮。加青皮、柴胡、海藻、昆布、黄芩、贝母、香附（各一钱）。
诸疮内托。加黄 、连翘、黄柏（各等分）。
诸疮发散。加防风、羌活、荆芥、连翘、牛蒡子（各等分）。
诸疮毒溃后。血虚。加人参、黄 、白术、甘草（各等分）。
妇人吹乳乳痈。加蒲公英（一钱五分）、金银花、石膏、贝母、香附、青皮、连翘、甘草节
（各八分）。
血风疮。加防风、黄柏、金银花、连翘、牛蒡子、苦参（各等分）、甘草（少）。
上四物汤加减方法也。详病虚实。增损用之。思过半矣。
Postpartum convulsions (convulsions and spasms triggered by fright after childbirth). Add Poria (Fuling), Gastrodia Rhizome (Tianma), Saposhnikovia Root (Fangfeng), Astragalus Root (Huangqi), Cinnamon Twig (Guigui), and Licorice Root (Gancao) in equal parts; remove Rehmannia Root (Dihuang). If there is phlegm, add Pinellia Tuber (Banxia) and Tangerine Peel (Chenpi), each 1 qian.
Postpartum dysentery. Add Scutellaria Root (Huangqin), Cinnamon Twig (Guizhi), Aurantium Fruit (Zhiqiao), Aucklandia Root (Muxiang), and Areca Seed (Binglang), each 7 fen; remove Rehmannia Root (Dihuang).
Excessive sweating after childbirth. Add Astragalus Root (Huangqi), 1 qian; Cinnamon Twig (Guizhi), 5 fen.
Blood wind after childbirth (conditions caused by blood deficiency generating wind postpartum). Twitching of the four limbs. Add Gastrodia Rhizome (Tianma) and Schizonepeta Spike (Jingjie Sui), each 1 qian.
Lochia retention after childbirth. Lochia desires to flow but does not, accompanied by pain. Add Moutan Bark (Mudanpi), Corydalis Rhizome (Yanhusuo), Safflower (Honghua), Lysimachiae Herba (Zelan Ye), Cinnamon Twig (Guigui), and Trogopterus Dung (Wulingzhi) in equal parts.
Postpartum cough. Add Inula Flower (Xuanjinhua), Peucedani Radix (Qianhu), Apricot Seed (Xingren), White Poria (Baifuling), and Tangerine Peel (Chenpi); remove Rehmannia Root (Dihuang) and Peony Root (Shaoyao).
Heart deficiency after childbirth. Palpitations and restlessness, disordered speech. Add Ginseng Radix (Renshen), Poria with Hostwood (Fushen), Polygala Root (Yuanzhi), Ophiopogon Tuber (Mendong), each 1 qian; Licorice Root (Gancao), 3 fen; remove White Peony Root (Baishaoyao) and Rehmannia Root (Dihuang).
Lochia stagnation after childbirth. Formation of clumps. Unbearable pain. Add Myrrh (Moyao), Dragon's Blood (Xuexie), Cinnamon Twig (Guigui), Peach Kernel (Taoren), Safflower (Honghua), Curcuma Rhizome (Ezhu), and Trogopterus Dung (Wulingzhi) in equal parts.
Postpartum edema. Add Atractylodes Macrocephala Rhizome (Baizhu), White Poria (Baifuling), Tangerine Peel (Chenpi), and Betel Nut Peel (Dafupi), each 1 qian; remove Rehmannia Root (Dihuang), decoct using carp soup.
Abdominal pain around the navel after childbirth. Add Stir-fried Dried Ginger (Chaoganjiang), Cinnamon Twig (Guigui), Cyperus Rhizome (Xiangfu), and Myrrh (Moyao) in equal parts.
Pain from blood clumps after childbirth. Add Polygonum Multiflorum Seed (Puhuang), Corydalis Rhizome (Yanhusuo), and Moutan Bark (Mudanpi) in equal parts; Cinnamon Twig (Guigui), a small amount.
Postpartum diarrhea. From this formula, remove Angelica Sinensis Root (Danggui) and Rehmannia Root (Dihuang); add Atractylodes Macrocephala Rhizome (Baizhu), Poria (Fuling), and Tangerine Peel (Chenpi), each 1 qian; Licorice Root (Gancao), a small amount; Dried Ginger (Ganjiang), and White Hyacinth Bean (Baibiandou), each 7 fen.
Blocked lactation. Add Angelica Dahurica Root (Baizhi) and Green Tangerine Peel (Qingpi), each 7 fen; Akebia Stem (Mutong), and Pangolin Scales (Chuanshanjia, stir-fried), each 1 qian.
Unceasing lochia. Add Charred Black Polygonum Multiflorum Seed (Chaohei Puhuang), Angelica Dahurica Root (Baizhi), Herb Ash (Baicaoshuang), Schizonepeta Spike (Jingjie Sui), and Sanguisorba Root (Diyu) in equal parts.
Childhood blood heat. Add Coptis Rhizome (Huanglian) and Forsythia Fruit (Lianqiao), each 6 fen.
Lifeless appearance of childhood smallpox/variolae (dull color of pustules indicating lack of vitality). This is due to blood deficiency. Add Astragalus Root (Huangqi), 1 qian; Cinnamon Twig (Guizhi), 3 fen; Arnebia Root (Zicao), 5 fen.
Disease of the coccyx in children. Add Chinese Yam (Shanyao), Anemarrhena Rhizome (Zhimu, wine-fried), and Cinnamon Twig (Guizhi), a small amount.
Sores/ulcers. Add Green Tangerine Peel (Qingpi), Bupleurum Root (Chaihu), Sargassum (Haizao), Kelp (Kunbu), Scutellaria Root (Huangqin), Fritillaria Bulb (Beimu), and Cyperus Rhizome (Xiangfu), each 1 qian.
Internal support for various sores (promoting internal resolution or expulsion of toxins). Add Astragalus Root (Huangqi), Forsythia Fruit (Lianqiao), and Phellodendron Bark (Huangbai) in equal parts.
Dispersal for various sores (dispersing exterior pathogens to vent toxins). Add Saposhnikovia Root (Fangfeng), Notopterygium Rhizome (Qianghuo), Schizonepeta (Jingjie), Forsythia Fruit (Lianqiao), and Arctium Seed (Niubangzi) in equal parts.
After sores/toxins have ulcerated. Blood deficiency. Add Ginseng Radix (Renshen), Astragalus Root (Huangqi), Atractylodes Macrocephala Rhizome (Baizhu), and Licorice Root (Gancao) in equal parts.
Nursing mother's blocked milk/mastitis. Add Dandelion (Gongying), 1.5 qian; Honeysuckle Flower (Jinyinhua), Gypsum (Shigao), Fritillaria Bulb (Beimu), Cyperus Rhizome (Xiangfu), Green Tangerine Peel (Qingpi), Forsythia Fruit (Lianqiao), and Licorice Stalk (Ganjie), each 8 fen.
Blood wind dermatitis. Add Saposhnikovia Root (Fangfeng), Phellodendron Bark (Huangbai), Honeysuckle Flower (Jinyinhua), Forsythia Fruit (Lianqiao), Arctium Seed (Niubangzi), and Sophora Root (Kushen) in equal parts; Licorice Root (Gancao), a small amount.
These are the methods for modifying Siwu Tang (Four Substances Decoction). Carefully distinguish the deficiency and excess of the disease, and increase or decrease herbs accordingly. One can grasp more than half of the principles through this understanding.