治有汗伤寒，瘥后血气未平，劳动助热复还于经络，有因与人交接而复发。如不易
而有病者，谓之劳复。若因交接，而无病之人反得病者，谓之阴阳易，曾见舌出数寸而
死者，多矣。此证最难治，必宜此汤。
人参 知母 竹青 黄连（卵缩腹痛倍加） 甘草 滑石 生地 韭根 柴胡 犀角
姜枣水煎，临服人烧 裆末一钱半，调服，有粘汗出为效。不粘汗出再服，以小
水利，阴头肿，则愈。
治有患头疼发热，项脊强，恶寒无汗，用发汗药二三剂，汗不出者。如不识此，遂
以麻黄重药及火劫取汗，误人多矣。此因阳虚不能作汗，名曰无阳证。
黄 人参 桂枝 甘草 细辛 附子（制） 羌活 防风 川芎 生姜（煨）
水二钟，枣二枚，煎一钟加炒芍药一撮，煎三沸温服。
治有患身热头疼全无，但作躁闷面赤，饮水不得入口，是元气虚弱，无根虚火泛
上，名曰戴阳症。
附子（制） 甘草 干姜 人参 五味 麦冬 黄连 知母 葱 艾 姜枣水
煎，临服入童便三匙，顿冷服。
治脾虚受邪，痰停胸膈，寒热为疟。
浓朴（姜制） 藿香 半夏 苍术（泔浸，糠炒） 陈皮（各一钱） 炙甘草（五分）
姜枣水煎热服。
正气者，中气也。中气不和水湿不行，则痰生为患，苍、朴、陈、甘，所以锄胃土
之墩阜，而使之平也。佐以藿香一身之滞气皆宣，助以半夏，满腹之痰涎尽化，俾正气
得以转输，邪气无由乘袭可贵孰甚焉。故名不换金也。
治疗伤寒患者已有汗出，病后气血尚未平复，因劳作助长热邪，热邪又回归经络；或因与人发生性关系而复发。如果原本没有生病的人因此患病，称为“劳复”。若因交接（性行为），而无病之人反而染病，称为“阴阳易”，我曾见过舌伸出数寸而死亡的情况，此类病例很多。此证最难治疗，必须使用此方：人参、知母、竹青、黄连（若出现睾丸收缩、腹痛则加倍使用）、甘草、滑石、生地、韭根、柴胡、犀角。用生姜、大枣煎水，服药前加入烧过的裤裆灰末一钱半，调匀服用，以排出粘腻的汗液为见效标志。若无粘汗排出，可再服一次，待小便通畅，阴头肿胀消退，则痊愈。
治疗患有头痛发热、项背僵硬、恶寒无汗的患者，使用发汗药二三剂后，仍不出汗。如果不了解此机理，便重用麻黄等峻烈药物及火疗强行取汗，误人者甚多。这是因为阳气虚弱，不能化生汗液，名为“无阳证”。处方：黄芪、人参、桂枝、甘草、细辛、附子（制）、羌活、防风、川芎、生姜（煨）。用水两钟，大枣两枚，煎至一钟，加入炒芍药一撮，再煎三沸，温服。
治疗患者身热头痛全无，但表现为烦躁闷乱、面赤，饮水无法入口，这是元气虚弱，无根虚火上泛，名为“戴阳症”。处方：附子（制）、甘草、干姜、人参、五味子、麦冬、黄连、知母、葱白、艾叶。用生姜、大枣煎水，服药前加入童便三匙，冷顿服下。
治疗脾虚受邪，痰饮停滞胸膈，寒热交替发作如疟疾者。处方：厚朴（姜制）、藿香、半夏、苍术（泔水浸泡，米糠炒）、陈皮（各一钱），炙甘草（五分）。用生姜、大枣煎水，热服。正气，即中气。中气不和则水湿不行，水湿不行则生痰致病，苍术、厚朴、陈皮、甘草，是用来铲除胃土之壅滞，使其平和。辅以藿香宣通全身滞气，佐以半夏化解满腹痰涎，使正气得以转输，邪气无由乘袭，其珍贵莫过于此。故名“不换金”。
Treats Taiyang disease (disease of the Taiyang channel) with sweating, where after recovery, Qi and Blood are not yet balanced. Labor aids heat, which returns to the channels and collaterals; or recurrence occurs due to sexual intercourse. If one who was previously healthy falls ill from this, it is called "Labor Recurrence" (Lao Fu). If due to intercourse, a healthy person contracts the disease, it is called "Yin-Yang Exchange" (Yin Yang Yi). I have seen many cases where the tongue protruded several inches leading to death. This condition is extremely difficult to treat and requires this decoction: Ren Shen (Ginseng), Zhi Mu (Anemarrhena Rhizome), Zhu Qing (Bamboo Sap), Huang Lian (Coptis Rhizome - double dose if testicular retraction and abdominal pain occur), Gan Cao (Licorice Root), Hua Shi (Talcum), Sheng Di (Rehmannia Root), Jiu Gen (Chinese Chive Root), Chai Hu (Bupleurum Root), Xi Jiao (Rhinoceros Horn - *Note: Use substitute in modern practice*). Decoct with Sheng Jiang (Fresh Ginger) and Da Zao (Jujube). Before administration, mix in 1.5 qian of ash from burnt underwear. Take mixed with water. Effectiveness is indicated by sticky sweat. If no sticky sweat, take again. Cure when urine flows freely and swelling of the glans penis subsides.
Treats patients with headache, fever, stiffness of the neck and spine, aversion to cold, and absence of sweating. After two or three doses of diaphoretic herbs, if sweat still does not appear, and one fails to recognize this pattern, using heavy doses of Ma Huang (Ephedra Herba) or fire therapy to force sweating has caused much harm. This is because Yang Qi is deficient and cannot generate sweat, known as the "Non-Yang Syndrome" (Wu Yang Zheng). Prescription: Huang Qi (Astragalus Root), Ren Shen (Ginseng), Gui Zhi (Cinnamon Twig), Gan Cao (Licorice Root), Xi Xin (Asarum Root), Fu Zi (Prepared Aconite Root), Qiang Huo (Notopterygium Rhizome), Fang Feng (Saposhnikovia Root), Chuan Xiong (Ligusticum Rhizome), Sheng Jiang (Fresh Ginger, baked). Decoct 2 zhong of water with 2 jujubes until 1 zhong remains. Add 1 bunch of fried Bai Shao (White Peony Root), boil for three more boils, and take warm.
Treats patients with body heat but no headache, presenting with irritability, restlessness, and facial redness, unable to drink water. This indicates deficiency of Yuan Qi (Original Qi) with floating empty fire rising upward, known as "Dai Yang Syndrome" (Floating Yang Syndrome). Prescription: Fu Zi (Prepared Aconite Root), Gan Cao (Licorice Root), Gan Jiang (Dried Ginger), Ren Shen (Ginseng), Wu Wei Zi (Schisandra Berry), Mai Dong (Ophiopogon Tuber), Huang Lian (Coptis Rhizome), Zhi Mu (Anemarrhena Rhizome), Cong Bai (Scallion White), Ai Ye (Mugwort Leaf). Decoct with Sheng Jiang (Fresh Ginger) and Da Zao (Jujube). Before administration, add 3 spoons of Tong Bian (Child's Urine) and take cold in one gulp.
Treats Spleen deficiency with pathogenic invasion, phlegm retention in the chest and diaphragm, and alternating chills and fever resembling malaria. Prescription: Hou Po (Magnolia Bark, ginger-processed), Huo Xiang (Pogostemon Herb), Ban Xia (Pinellia Tuber), Cang Zhu (Atractylodes Rhizome, soaked in rice water, fried with bran), Chen Pi (Citrus Peel, each 1 qian), Zhi Gan Cao (Honey-fried Licorice Root, 0.5 qian). Decoct with Sheng Jiang (Fresh Ginger) and Da Zao (Jujube) and take hot. Zheng Qi (Upright Qi) refers to Zhong Qi (Middle Qi). If Middle Qi is not harmonious, Water-Dampness does not move, leading to Phlegm formation and pathology. Cang Zhu, Hou Po, Chen Pi, and Gan Cao serve to remove stagnation in the Stomach Earth and restore balance. Huo Xiang assists in dispersing stagnant Qi throughout the body, while Ban Xia helps transform phlegm-fluids in the abdomen, allowing Zheng Qi to circulate and preventing pathogenic factors from invading. How precious can this be? Hence the name "Bu Huan Jin" (Unchanging Gold).