夫肾者。精神之舍。元气之系。通于经络。主于腰脚。若伤寒后肾气虚损。风邪所侵。
流入少阴之经。与血气相击。久而不散。即令腰脚疼痛也。
治伤寒后。风虚。腰脚顽痹。骨髓疼痛。不能久立。宜服羌活散方。
羌活 防风（去芦头） 黄 五加皮 牛膝（去苗）（以上各一两） 酸枣仁（微炒）
丹
参桂心
两） 枳实（半
上件药。细锉。和匀。每服半两。水一大盏。入生姜半分。煎至五分。去滓食前温服。
服药讫。即以衣覆卧。良久即瘥。
治伤寒后。风毒攻腰脚。骨节疼痛。宜服麻黄散方。
麻黄（一两去根节） 细辛（一两） 独活（一两） 丹参（三分） 牛膝（三分去苗）
萆（
三分
羊角屑（一
两
上件药。捣筛为散。每服四钱。以水一中盏。入生姜半分。煎至六分。去滓。食前温服
治伤寒后。肝肾风虚。毒瓦斯壅滞。大小肠秘涩。气攻腰脚。疼痛妨闷。宜服大腹
皮散方
大腹皮（一两锉） 桂心（一两） 槟榔（半两） 赤芍药（一两） 泽泻（一两） 木
通（三分
锉） 木香（半两） 川朴硝（三分）
上件药。捣粗罗为散。每服四钱。以水一中盏。入生姜半分。煎至六分。去滓。食前温
服。
治伤寒后。脏腑虚弱。腰膝疼痛。瘦瘁。宜服牛膝散方。
牛膝（去苗） 石斛（去根锉） 薯蓣 赤芍药 杜仲（去粗皮炙微黄锉） 萆 （锉）
（以上
各三分） 当归（一两锉微炒） 桑寄生（半两） 熟干地黄（一两）
上件药。捣筛为散。每服五钱。以水一中盏。入酒三合。生姜半分。煎至六分。去滓。
食前温服。服药后徐步。令药势行。
治伤寒后。肾脏风虚。脚膝疼痛少力。不能步行。宜服独活散方。
独活（一两） 防风（三分去芦头） 五加皮（三分） 附子（一两炮裂去皮脐） 赤
芍药（一
两）
（一两半去
粗皮
上件药。捣筛为散。每服五钱。以水一大盏。入生姜半分。煎至五分。去滓。食前温服
治伤寒后。腹胀气急。连腰脚疼痛。宜服桂心散方。
桂心 陈橘皮（汤浸去白瓤焙） 白术 附子（炮裂去皮脐） 当归（锉微炒） 木香 浓
朴
（去粗皮涂生姜汁炙令香熟）（以上各半两） 槟榔（一两）
上件药。捣细罗为散。每服食前。以温酒调下二钱。
治伤寒后虚冷。腰间有积滞。气流注腰脚。疼不可忍。宜服槟榔丸方。
槟榔（半两） 陈橘皮（半两汤浸去白瓤焙） 桂心（半两） 赤芍药（半两） 附子
（半两炮
裂去皮脐） 干姜（一分炮裂锉） 牵牛子（五两微炮（炒）别杵罗取末二两半）
上件药。捣罗为末。都研令匀。炼蜜和丸。如梧桐子大。食前。以温生姜汤下三十丸。
相次以生姜粥饮投之。良久当利。未利再服。
治伤寒后。腰间气滞。流注脚膝。疼痛。宜服沉香散方。
沉香（一两） 五加皮（一两） 枳实（半两麸炒微黄） 桂心（一两） 槟榔（一两）
附子（
半两炮裂去皮脐） 当归（半两锉微炒） 木香（半两） 川大黄（一两锉碎微炒）
上件药。捣细罗为散。每服食前。以葱白汤调下二钱服之。
治伤寒后。腰脚疼痛。宜服威灵仙散方。
威灵仙（一两半） 牵牛子（二两微炒） 陈橘皮（三分汤浸去白瓤焙） 浓朴（三分
去粗皮
涂生姜汁炙令香熟） 吴茱萸（半两汤浸七遍曝干微炒）
上件药。捣细罗为散。空心。以温酒调下二钱。当泻下恶秽。
治伤寒后。肩背拘急。腰脚疼痛方。
羌活（一两） 干薄荷（一两） 木香（三分） 槟榔（三分） 威灵仙（二两）
上件药。捣细罗为散。每服食前。以温酒调下二钱。
治伤寒后。风气流注。腰脚疼痛。坐卧有妨。宜用贴 方。
附子（半两生用） 桂心（半两） 吴茱萸（一分生用）
上件药。捣罗为末。用生姜自然汁。调令稀稠得所。入铫子内。慢火煎如饧。摊在蜡纸
上。于痛处贴 之。
治伤寒后。毒瓦斯攻注。腰脚疼痛。宜用芫花散熨方。
芫花（二两） 吴茱萸（二两） 醋糟（八两）
上件药。相和令匀。于铫子内。炒令热。以青布裹。于痛处熨之。如稍干。以醋拌令润
。再炒熨之。以痛止为度。
治伤寒后。毒瓦斯伤于经脉。即致腰脚痛方。\x
鹿角（一双长三寸截之） 酒（七斤）
上件药。先用鹿角。以炭五斤。烧令通赤。内于酒中蘸。如此五度止。浸经一宿。每服
空心及晚食前。暖一中盏服。
The Kidney (Shen) is the residence of spirit and essence, the root of primordial Qi (Yuan Qi), connects with the meridians, and primarily governs the waist and legs. If after a Shanghan (Cold Damage) disease the Kidney Qi is deficient and damaged, wind pathogens invade, flowing into the Shaoyin Meridian, where they clash with Blood and Qi. If this persists for a long time without resolving, it causes pain in the waist and legs.
For treating waist and leg numbness and bi-syndrome, bone marrow pain, and inability to stand for long periods due to wind deficiency after Shanghan, the Qianghuo San (Notopterygium Powder) formula is suitable.
Ingredients: Qianghuo (Notopterygii Rhizoma et Radix), Fangfeng (Saposhnikoviae Radix, remove the radicle head), Huangqi (Astragali Radix), Wujia Pi (Acanthopanacis Cortex), Niuxi (Achyranthis Bidentatae Radix, remove the sprout) (each 1 liang), Suanzaoren (Ziziphi Spinosae Semen, slightly stir-fried), Danshen (Salviae Miltiorrhizae Radix et Rhizoma), Guixin (Cinnamomi Ramulus), Zhishi (Aurantii Fructus Immaturus, half liang).
Finely chop the above herbs, mix evenly. Take 0.5 liang per dose, add one large cup of water and half a piece of fresh ginger, decoct until five parts remain, strain, and take warm before meals. After taking the medicine, cover oneself with clothing and lie down; after a while, the condition will improve.
For treating waist and leg pain caused by wind-toxin attacking the joints after Shanghan, the Mahuang San (Ephedra Powder) formula is suitable.
Ingredients: Mahuang (Ephedrae Herba, 1 liang, remove roots and nodes), Xixin (Asari Radix et Rhizoma, 1 liang), Duhuo (Angelicae Pubescentis Radix, 1 liang), Danshen (Salviae Miltiorrhizae Radix et Rhizoma, 3 qian), Niuxi (Achyranthis Bidentatae Radix, 3 qian, remove sprouts), Bibing (Dioscoreae Hypoglaucae Rhizoma, 3 qian), Yangjiaoxie (Cornu Caprae Hirci, 1 liang).
Pulverize the above herbs into powder. Take 4 qian per dose, add one medium cup of water and half a piece of fresh ginger, decoct until six parts remain, strain, and take warm before meals.
For treating liver and kidney wind deficiency after Shanghan, with toxic qi stagnation, constipation of the large and small intestines, qi attacking the waist and legs causing pain and oppression, the Dafupi San (Arecae Pericarpium Powder) formula is suitable.
Ingredients: Dafupi (Arecae Pericarpium, 1 liang, chopped), Guixin (Cinnamomi Ramulus, 1 liang), Binglang (Arecae Semen, half liang), Chishao Yao (Paeoniae Radix Rubra, 1 liang), Zexie (Alismatis Rhizoma, 1 liang), Mutong (Akebiae Caulis, 3 qian, chopped), Muxiang (Aucklandiae Radix, half liang), Chuan Poxiao (Natrii Sulfas, 3 qian).
Coarsely sieve the above herbs into powder. Take 4 qian per dose, add one medium cup of water and half a piece of fresh ginger, decoct until six parts remain, strain, and take warm before meals.
For treating weak internal organs, waist and knee pain, and emaciation after Shanghan, the Niuxi San (Achyranthes Powder) formula is suitable.
Ingredients: Niuxi (Achyranthis Bidentatae Radix, remove sprouts), Shihu (Dendrobii Caulis, remove roots and chop), Shuyu (Dioscoreae Rhizoma), Chishao Yao (Paeoniae Radix Rubra), Duzhong (Eucommiae Cortex, remove coarse bark, stir-fry until slightly yellow and chop), Bibing (Dioscoreae Hypoglaucae Rhizoma, chop) (each 3 qian), Danggui (Angelicae Sinensis Radix, 1 liang, chop and slightly stir-fry), Sangjisheng (Taxilli Caulis, half liang), Shudihuang (Rehmanniae Radix Praeparata, 1 liang).
Sieve the above herbs into powder. Take 5 qian per dose, add one medium cup of water, three he of wine, and half a piece of fresh ginger, decoct until six parts remain, strain, and take warm before meals. Walk slowly after taking the medicine to promote the action of the drug.
For treating kidney wind deficiency after Shanghan, causing painful and weak knees and feet, unable to walk, the Duhuo San (Angelica Pubescens Powder) formula is suitable.
Ingredients: Duhuo (Angelicae Pubescentis Radix, 1 liang), Fangfeng (Saposhnikoviae Radix, 3 qian, remove radicle head), Wujia Pi (Acanthopanacis Cortex, 3 qian), Fuzi (Aconiti Lateralis Radix Praeparata, 1 liang, processed until cracked, remove skin and umbilicus), Chishao Yao (Paeoniae Radix Rubra, 1 liang). [Note: Original text appears incomplete or corrupted here].
Pulverize the above herbs into powder. Take 5 qian per dose, add one large cup of water and half a piece of fresh ginger, decoct until five parts remain, strain, and take warm before meals.
For treating abdominal distension, shortness of breath, and continuous pain in the waist and legs after Shanghan, the Guixin San (Cinnamon Twig Powder) formula is suitable.
Ingredients: Guixin (Cinnamomi Ramulus), Chenju Pi (Citri Reticulatae Pericarpium, soaked in hot water, remove white pith and bake), Baizhu (Atractylodis Macrocephalae Rhizoma), Fuzi (Aconiti Lateralis Radix Praeparata, processed until cracked, remove skin and umbilicus), Danggui (Angelicae Sinensis Radix, chop and slightly stir-fry), Muxiang (Aucklandiae Radix), Houpo (Magnoliae Officinalis Cortex, remove coarse bark, coat with fresh ginger juice, stir-fry until fragrant) (each half liang), Binglang (Arecae Semen, 1 liang).
Finely sieve the above herbs into powder. Take 2 qian before meals, mixed with warm wine.
For treating post-Shanghan deficiency-cold, accumulation in the waist, qi flowing into the waist and legs causing unbearable pain, the Binglang Wan (Areca Seed Pill) formula is suitable.
Ingredients: Binglang (Arecae Semen, half liang), Chenju Pi (Citri Reticulatae Pericarpium, half liang, soaked in hot water, remove white pith and bake), Guixin (Cinnamomi Ramulus, half liang), Chishao Yao (Paeoniae Radix Rubra, half liang), Fuzi (Aconiti Lateralis Radix Praeparata, half liang, processed until cracked, remove skin and umbilicus), Ganjiang (Zingiberis Rhizoma, 1 fen, processed until cracked and chopped), Qianniu Zi (Pharbitidis Semen, 5 liang, slightly stir-fried, separately pounded and sieved to obtain 2.5 liang of powder).
Pound and sieve the above herbs into powder, grind uniformly, and mix with refined honey to make pills the size of paulownia seeds. Take 30 pills before meals with warm ginger soup. Follow immediately with ginger porridge drink. After a while, diarrhea should occur. If not, take again.
For treating post-Shanghan qi stagnation in the waist, flowing into the knees and feet causing pain, the Chenxiang San (Agarwood Powder) formula is suitable.
Ingredients: Chenxiang (Aquilariae Lignum Resinatum, 1 liang), Wujia Pi (Acanthopanacis Cortex, 1 liang), Zhishi (Aurantii Fructus Immaturus, half liang, bran-fried until slightly yellow), Guixin (Cinnamomi Ramulus, 1 liang), Binglang (Arecae Semen, 1 liang), Fuzi (Aconiti Lateralis Radix Praeparata, half liang, processed until cracked, remove skin and umbilicus), Danggui (Angelicae Sinensis Radix, half liang, chop and slightly stir-fry), Muxiang (Aucklandiae Radix, half liang), Dahuang (Rhei Radix et Rhizoma, 1 liang, chop and slightly stir-fry).
Finely sieve the above herbs into powder. Take 2 qian before meals, mixed with scallion white soup.
For treating waist and leg pain after Shanghan, the Weilingxian San (Clematis Root Powder) formula is suitable.
Ingredients: Weilingxian (Clematidis Radix et Rhizoma, 1.5 liang), Qianniu Zi (Pharbitidis Semen, 2 liang, slightly stir-fried), Chenju Pi (Citri Reticulatae Pericarpium, 3 qian, soaked in hot water, remove white pith and bake), Houpo (Magnoliae Officinalis Cortex, 3 qian, remove coarse bark, coat with fresh ginger juice, stir-fry until fragrant), Wuzhuyu (Evodiae Fructus, half liang, soaked in hot water seven times, dried and slightly stir-fried).
Finely sieve the above herbs into powder. Take 2 qian on an empty stomach, mixed with warm wine. This should cause the discharge of foul matter.
Formula for shoulder and back stiffness and waist and leg pain after Shanghan.
Ingredients: Qianghuo (Notopterygii Rhizoma et Radix, 1 liang), Gan Bohe (Menthae Haplocalycis Herba, 1 liang), Muxiang (Aucklandiae Radix, 3 qian), Binglang (Arecae Semen, 3 qian), Weilingxian (Clematidis Radix et Rhizoma, 2 liang).
Finely sieve the above herbs into powder. Take 2 qian before meals, mixed with warm wine.
For treating post-Shanghan wind and qi flow causing waist and leg pain, affecting sitting and lying, apply the external paste formula.
Ingredients: Fuzi (Aconiti Lateralis Radix, half liang, raw use), Guixin (Cinnamomi Ramulus, half liang), Wuzhuyu (Evodiae Fructus, 1 fen, raw use).
Pound the above herbs into powder, mix with natural fresh ginger juice to appropriate consistency, boil slowly in a pot until like syrup, spread on wax paper, and apply to the painful area.
For treating post-Shanghan toxic qi attack causing waist and leg pain, use the Yuanhua San (Genkwa Flower Powder) hot compress method.
Ingredients: Yuanhua (Genkwae Flos, 2 liang), Wuzhuyu (Evodiae Fructus, 2 liang), Cu Zao (Vinegar Lees, 8 liang).
Mix the above herbs evenly, stir-fry hot in a pot, wrap in blue cloth, and apply as a hot compress to the painful area. If it cools/dries, moisten with vinegar, reheat, and compress again, until pain stops.
Formula for post-Shanghan toxic qi damaging meridians causing waist and leg pain.
Ingredients: Lu Jiao (Cervi Cornu Deantatinum, one pair, 3 cun long, cut), Jiu (Vinum, 7 jin).
First, heat the deer horn with 5 jin of charcoal until red-hot, dip into the wine. Repeat this dipping process five times. Soak overnight. Take one warm cup on an empty stomach and before evening meal.