产后乍寒乍热，总由血气虚损，阴阳不和而然。若阳胜则乍热，阴胜则乍寒。凡阴胜而寒多者，宜增损四
物汤、理阴煎。若阳胜而热多者，宜四物汤、三阴煎。若阳气陷入阴中而乍寒乍热者，宜补中益气汤，补阴益
气煎。若阴阳俱虚而寒热者，宜八珍汤、十全大补汤。若败血不散，流入阴中而作寒热者，宜决津煎、殿胞
煎。若血实气壅者，宜夺命丹。
增损四物汤（见血寒论外方）
理阴煎（见血寒经迟）
四物汤（见经不调）
三阴煎（见血虚经乱）
补中益气汤（见经不调）
补阴益气煎（见热入血室）
八珍汤（见经不调）
十全大补汤（见调经论外备用方）
决津煎（见经期腹痛）
殿胞煎（见小产论外方）
夺命丹（见鬼胎）
陈无择曰∶败血流闭诸阴则寒，流闭诸阳则热，宜五积散。若有外感者，宜从前“产后发热”治。
五积散（见产后腹痛）
蓐，草荐也。产妇坐草艰难，以致过劳心力，故曰蓐劳。此即产后劳倦也。其证则或为寒热如疟，或头疼
自汗，或眩晕昏沉，或百节疼痛，或倦怠喘促，饮食不甘，形体虚羸之类，皆其候也。悉当以培补元气为主。
若初产后，蓐劳困倦，惟猪腰汤为妙，或用黄雌鸡汤、白茯苓散。若蓐劳虚汗不止，宜母鸡汤。若兼脏寒
者，宜羊肉汤。若气血俱虚者，宜五福饮、十全大补汤。若兼外邪发热而中寒、背恶寒者，宜理阴煎，详加
减法治之。若兼阳虚内寒者，宜五君子煎或理阴煎。若阳盛阴虚兼内热者，宜五福饮加芍药、黄芩、地骨皮之
类，随宜用之。
猪腰汤（见《妇人规古方》）治产后褥劳，寒热如疟，自汗无力，咳嗽、头痛、腹痛俱效。
猪腰（一对） 当归 白芍药（酒炒各一两）
上以药二味，用水三碗煎至二碗，去滓，将猪腰切如骰子块，同晚米一合，香豉一钱，和葱、椒、盐煮稀
粥，空心日服一次，神效。或加人参更妙。
黄雌鸡汤（见产后腹痛）
白茯苓散（见《妇人规古方》）治产后蓐劳，头目肢体疼痛，寒热如疟。
白茯苓（一两） 人参 当归 黄 川芎 白芍药（炒） 熟地 桂心（各半两） 猪腰（一对）
上以水三盏，入猪腰并姜、枣各三事，煎二盏，去渣，入前药半两，煎一盏服。
母鸡汤（见《妇人规古方》）治产后褥劳，虚汗不止。
人参 黄 白术 白茯苓 麻黄根 牡蛎（ 各三钱）
上用母鸡一只，去毛杂，净水六七碗，同药煮至三碗，任意服之。
羊肉汤（见产后腹痛）
五福饮（见血热经早）
十全大补汤（见调经论外备用方）
补阴益气煎（见热入血室）
补中益气汤（见经不调）
理阴煎（见血寒经迟）
五君子煎（见崩淋经漏不止）
Postpartum alternating chills and fever are generally caused by deficiency and damage of Qi and Blood, leading to disharmony between Yin and Yang. If Yang is predominant, there will be alternating chills and fever with a tendency toward heat; if Yin is predominant, there will be alternating chills and fever with a tendency toward cold. For cases where Yin is predominant and cold symptoms are more frequent, Zengsun Siwu Tang (Modified Four Substances Decoction) or Liyin Jian (Yin-Nourishing Decoction) should be used. For cases where Yang is predominant and heat symptoms are more frequent, Siwu Tang (Four Substances Decoction) or Sanyin Jian (Three Yin Decoction) should be used. For cases where Yang Qi sinks into the Yin level causing alternating chills and fever, Buzhong Yiqi Tang (Tonify the Middle and Augment the Qi Decoction) or Buyin Yiqi Jian (Nourish Yin and Augment Qi Decoction) should be used. For cases where both Yin and Yang are deficient resulting in alternating chills and fever, Bazhen Tang (Eight Treasures Decoction) or Shiquan Dabu Tang (Ten Complete Great Tonifying Decoction) should be used. For cases where lochia (postpartum residual blood) fails to disperse and flows into the Yin level causing chills and fever,iejuejin Jian (Juejin Decoction) or Dianbao Jian (Dianbao Decoction) should be used. For cases of Blood excess and Qi stagnation, Mingdan (Life-Restoring Pill) should be used.
Zengsun Siwu Tang (See external formulas in "Discussion on Blood Cold")
Liyin Jian (See "Blood Cold with Delayed Menstruation")
Siwu Tang (See "Irregular Menstruation")
Sanyin Jian (See "Blood Deficiency with Menstrual Disorder")
Buzhong Yiqi Tang (See "Irregular Menstruation")
Buyin Yiqi Jian (See "Heat Entering the Blood Chamber")
Bazhen Tang (See "Irregular Menstruation")
Shiquan Dabu Tang (See backup formulas in "Discussion on Regulating Menstruation")
Juejin Jian (See "Abdominal Pain during Menstruation")
Dianbao Jian (See external formulas in "Discussion on Miscarriage")
Mingdan (See "Ghost Fetus")
Chen Wuyue stated: When broken blood obstructs the Yin meridians, it causes cold; when it obstructs the Yang meridians, it causes heat. Wuji San (Five Accumulations Powder) should be used. If there is an external pathogenic invasion, one should follow the treatment principles for "Postpartum Fever" mentioned earlier.
Wuji San (See "Postpartum Abdominal Pain")
Ru refers to straw mats. The difficulty of childbirth while sitting on straw mats leads to excessive mental and physical fatigue, hence the term Ru Lao (Childbed Labor). This is essentially postpartum exhaustion. Its symptoms may include alternating chills and fever resembling malaria, headache with spontaneous sweating, dizziness and lethargy, pain in all joints, fatigue with panting, poor appetite, emaciation, and other signs of deficiency. Treatment should primarily focus on tonifying Yuan Qi (Primary Qi). In the immediate postpartum period, if Ru Lao causes fatigue and weakness, Zhu Yao Tang (Pig Kidney Soup) is excellent, or Huang Ci Ji Tang (Yellow Hen Chicken Soup) and Bai Fuling San (White Poria Powder) can be used. If Ru Lao results in incessant deficiency sweating, Mother Chicken Soup is suitable. If accompanied by internal cold of the Zang organs, Lamb Soup is suitable. If both Qi and Blood are deficient, Wufu Yin (Five Blessings Drink) or Shiquan Dabu Tang (Ten Complete Great Tonifying Decoction) should be used. If accompanied by external pathogenic heat with central cold and aversion to cold on the back, Liyin Jian (Yin-Nourishing Decoction) should be used with detailed modifications. If accompanied by Yang deficiency and internal cold, Wujunzi Jian (Five Gentlemen Decoction) or Liyin Jian (Yin-Nourishing Decoction) should be used. If Yang is exuberant and Yin is deficient with internal heat, Wufu Yin (Five Blessings Drink) added with Shaoyao (Peony Root), Huangqin (Scutellaria Root), and Digupi (Groundcherry Bark) should be used according to circumstances.
Zhu Yao Tang (See "Ancient Formulas of Furen Gui") treats postpartum childbed labor, alternating chills and fever like malaria, spontaneous sweating with weakness, cough, headache, and abdominal pain.
Pig Kidney (one pair) Danggui (Angelica Sinensis Root) Baishao Yao (White Peony Root, stir-fried with wine, each 1 liang)
Take the two herbs, decoct in three bowls of water until two bowls remain, remove the dregs. Cut the pig kidney into dice-sized cubes. Combine with one he measured unit of late rice, one qian of Xiangchi (Fermented Soybean), scallion, Sichuan pepper, and salt, and cook into a thin porridge. Take once daily on an empty stomach for miraculous effect. Adding Renshen (Ginseng Root) is even better.
Huang Ci Ji Tang (See "Postpartum Abdominal Pain")
Bai Fuling San (See "Ancient Formulas of Furen Gui") treats postpartum Ru Lao, pain in the head, eyes, and limbs, and alternating chills and fever like malaria.
Bai Fuling (White Poria, 1 liang) Renshen (Ginseng Root) Danggui (Angelica Sinensis Root) Huangqi (Astragalus Root) Chuanxiong (Ligusticum Rhizome) Baishao Yao (White Peony Root, stir-fried) Shudi (Prepared Rehmannia Root) Guixin (Cinnamon Twig, each half liang) Pig Kidney (one pair)
Take three cups of water, add the pig kidney, three slices of ginger, and three dates. Decoct until two cups remain, remove the residue. Add half liang of the powdered herbs previously listed, decoct until one cup remains, and take orally.
Mother Chicken Soup (See "Ancient Formulas of Furen Gui") treats postpartum childbed labor with incessant deficiency sweating.
Renshen (Ginseng Root) Huangqi (Astragalus Root) Baizhu (Atractylodes Rhizome) Bai Fuling (White Poria) Mahuang Gen (Ephedra Root) Muli (Oyster Shell, each 3 qian)
Take one hen, remove feathers and impurities. Use six or seven bowls of clean water, decoct together with the herbs until three bowls remain. Take as desired.
Lamb Soup (See "Postpartum Abdominal Pain")
Wufu Yin (Five Blessings Drink) (See "Early Menstruation due to Blood Heat")
Shiquan Dabu Tang (Ten Complete Great Tonifying Decoction) (See backup formulas in "Discussion on Regulating Menstruation")
Buyin Yiqi Jian (Nourish Yin and Augment Qi Decoction) (See "Heat Entering the Blood Chamber")
Buzhong Yiqi Tang (Tonify the Middle and Augment the Qi Decoction) (See "Irregular Menstruation")
Liyin Jian (Yin-Nourishing Decoction) (See "Blood Cold with Delayed Menstruation")
Wujunzi Jian (Five Gentlemen Decoction) (See "Incessant Metrorrhagia and Leukorrhea")