论曰香港脚缓弱者，由肾脏虚，风入其经，故筋弛纵而酸弱。内经谓缓风湿痹是也。古方
载苏氏论亦云，不肿而缓弱，行挛屈倒，渐至不仁，盖风湿毒瓦斯之感人，多不即觉；或因他
疾，乃始发动。初若不足畏，驯察其状，自膝至脚，已有不仁；或痹痛；或如虫喙；或足趾
及胫酸痛；或屈弱不能行。皆缓弱之证也。
治香港脚、手足缓弱，膝疼痹，上热下冷；或时心闷；或即呕逆。牛膝汤方
牛膝（去苗酒浸焙锉） 萆 麦门冬（去心焙干） 赤茯苓（去黑皮） 黄 （锉炒）
芎
独活（去
芦头） 桂（去粗皮各五两） 甘草（炙锉） 当归（切焙各四两） 木香（二两） 杏仁
（汤退去皮
尖双仁炒黄十五枚）
上一十七味。锉如麻豆，每服五钱匕。以水一盏半，生姜一分拍碎，煎至一盏，去滓温
服，不拘时。日三服。
治香港脚缓弱，及痹肿满，心下急大便涩。柴胡猪苓汤方
柴胡（去苗） 猪苓（去黑皮） 紫苏茎叶（细锉各一两半） 陈橘皮（汤去白焙） 防
己大
麻仁（炒研） 郁李仁（汤去皮尖炒研各一两） 桑根白皮（锉碎炒令黄二两半）
上八味。除麻仁郁李仁研外，粗捣筛，入研药和匀。每服三钱匕，以水一盏，煎至七分。
去滓空腹服，日午晡时再服。
治香港脚缓弱上气， 痹胀满，不能食。枳实散方
枳实（去瓤麸炒黄一两） 桂（去粗皮二两） 白术 赤茯苓（去黑皮各三分）
上四味。捣罗为细散，每服三钱匕，空心以温酒调服，近晚再服。
治香港脚缓弱肿疼。杜仲汤方
杜仲（去粗皮微炙捣为细末三两） 生地黄（汁三合）
上二味。先将杜仲末，以水二盏，煎至一盏，去滓入地黄汁三合，酒二合，再煎三五沸，
温服。空腹近晚各一服。
治香港脚久虚，脉来沉细、潜补。曹公钟乳丸方
炼成钟乳粉（三两） 石槲（去根节二两） 吴茱萸（汤浸三遍炒黄三分） 菟丝子（酒
浸三
宿捣如泥炒二两）
上四味。除钟乳粉外，捣罗为细末，炼蜜和丸，如梧子大。每服三十丸，食前以人参枣
汤下，觉气壅，即服疏气药。勿令太过。
治香港脚久虚缓弱。乳煎硫黄散方
黄牛乳（三升） 硫黄（研如粉一两）
上二味。先将牛乳煎令减半，每服以乳五合，入硫黄末二钱，调和服之，服毕宜以浓衣
被复卧取汗。勿令见风，午时日晡，各再一服；得汗不用再服，若病未痊，三五日可更服。
治香港脚久虚，脉沉细缓弱。独活酒方
独活（去芦头） 附子（炮裂去皮脐各二两半）
上二味。锉如麻豆大，盛以绢袋，内瓷瓶中，以醇酒五升浸蜜封，三日后旋取，从一合
饮之，加至半盏，长令体中酒气相接。未效再服，以瘥为度。
治香港脚风多，皮肉 痹，筋骨疼痛，足趺不仁，手脚缓弱，履地不稳。附子汤方
附子（一枚重半两者炮裂去皮脐） 麻黄（去根节一两半） 杏仁（汤浸去皮尖双仁炒
黄四
十枚） 细辛（去苗叶三分） 芎 （一两一分） 牛膝（去苗酒浸焙干） 丹参（去根节）
防风（
去叉） 独活（去芦头） 五加皮（炙令黄各一两）
上一十味。锉如麻豆，每服五钱匕，用水一盏半。入生姜半分拍碎，同煎至一盏。去滓
温服，空心日午晡时，衣复微令汗出。
治香港脚缓弱，疼痹肿满。柳白皮汤方
柳白皮（三升细锉如棋子大）
上一味。以水一石，煎取六斗。取一小瓮子，可受一石者，内汤瓮中，以两木横瓮底，
脚踏其上，汤不得过三里穴，如此三度，即消，浸时，使汤常热佳。
治香港脚缓弱，疼痹肿满。豉汤方
豉（三升） 蜀椒（一升生用） 生姜（和皮锉二斤）
上三味。以水一斗五升，煮一沸，贮在小瓮子，中着二小木横瓮下，脚踏木上。汤不得
过三里穴，以故衣塞瓮口。勿令通气，微着糠火烧瓮，使汤常热，如瓮中大热，歇令片时，
浸脚了，急将绵衣盖两脚令暖，勿令触冷见风。临卧浸之佳。
治脚弱及中风缓弱。羌活汤方
羌活（去芦头五两） 葛根（锉） 桂（去粗皮） 半夏（汤洗七遍去滑尽焙干各四两）
干姜
（炮三两） 防风（去叉一两） 甘草（炙锉二两）
上七味。粗捣筛，每服五钱匕，水一盏半，煎至一盏，去滓温服。空心至日午三服。
治香港脚筋挛不能行，及干痛不肿，日渐枯瘁；或肿满缓弱。蒴 熏蒸方
上取蒴 三斤，和根叶，锉长二三寸。穿地作一坑，面阔一尺，以柴截置于坑中，烧令
微赤，出灰火净。以蒴 布坑四傍，侧布一行，正布一行，次以故毡。盖坑口，候蒴 萎，
更着新者一二斤，坑边铺荐席坐，以杉木板。置于坑地，以脚踏板上、熏之，以绵衣复脚，
遣周遍勿令气出，如射人热甚，开歇片时，还内脚于坑中，其四边或有热处，即随热处着蒴
布之。如病患困即止，安稳暖卧，以绵衣盖，勿令露风，饱食以补之，三五日一熏，重者
不过三五熏即瘥。
治风毒香港脚缓弱，腰脊急痛，臂 酸疼，心胸痰壅，气逆胁满。白茯苓丸方
白茯苓（去黑皮） 石槲（去根） 肉苁蓉（酒浸切焙） 酸枣仁（炒） 五味子（炒）
天雄（
炮裂去皮脐） 续断 泽泻（锉） 当归（切焙各一两半） 人参 白蒺藜（炒） 羚羊角
（镑）
枳壳（去瓤麸炒） 五加皮（锉） 黄 （炙锉） 防风（去叉） 细辛（去苗叶炒） 独
活（去芦头）
杜仲（去粗皮酥炙） 甘草（锉炙各一两） 熟干地黄（焙） 白槟榔（生用） 鹿角胶（炙
令燥）
云母粉（别研各二两） 菟丝子（酒浸软别研三两）
上二十五味。先将二十三味，捣罗为末，入细研云母粉菟丝子，揉拌令匀再罗，炼蜜为
丸，如梧桐子大。每日早晚食前，各煎枣汤下二十丸。
治香港脚皮肉 痹，筋骨疼痛，手脚缓弱，行履艰难。麻黄独活汤方
麻黄（去根锉） 独活（去芦头） 杏仁（汤浸去皮尖双仁炒各一两半） 丹参 附子
（炮裂
去皮脐） 五加皮 细辛（去苗叶） 牛膝（酒浸切焙） 芎 桑根白皮 白僵蚕（炒各
一两）
Discourse states: Hong Kong foot (a disease characterized by swelling, pain, or flaccidity of the lower limbs) presenting with flaccidity and weakness is caused by deficiency of the Kidney, where Wind pathogen invades its meridians, leading to laxity of tendons and acid-weakness. The *Neijing* refers to this as "Flaccid Damp-Wind Bi" (Bi syndrome due to damp-wind causing flaccidity). Ancient prescriptions record that Su Shi also stated: if there is no swelling but rather flaccidity and weakness, with spasmodic flexion during walking or even falling, gradually progressing to insensibility, it is because Damp-Wind toxic qi invading the human body often does not manifest immediately; or it may be triggered by other diseases. Initially, it may seem insignificant, but upon careful observation of the condition, from the knee down to the foot, there is already insensibility; or Bi pain; or a sensation like insect bites; or soreness and pain in the toes and shins; or weakness preventing movement. These are all signs of flaccidity and weakness.
Treatment for Hong Kong foot, flaccidity and weakness of hands and feet, knee pain and Bi obstruction, upper body heat and lower body cold; or occasional chest oppression; or vomiting and regurgitation. Niuxi Tang (Achyranthes Decoction):
Niuxi (Radix Achyranthis Bidentatae, remove sprouts, soak in wine, bake dry, and cut into pieces) Bibo (Rhizoma Dioscoreae Hypoglaucae), Maimendong (Radix Ophiopogonis, remove heart, bake dry), Chifuling (Poria Cocos with black skin removed), Huangqi (Radix Astragali, cut and stir-fry), Xiong (Radix Chuanxiong), Duhuo (Radix Angelicae Pubescentis, remove rhizome), Gui (Ramulus Cinnamomi, remove rough bark, each 5 liang), Gancao (Radix Glycyrrhizae, roasted and cut), Danggui (Radix Angelicae Sinensis, slice and bake, each 4 liang), Muxiang (Radix Aucklandoniae, 2 liang), Xingren (Semen Pruni Armeniacae, blanch to remove skin and tips, use double kernels, stir-fry until yellow, 15 seeds).
The above seventeen ingredients. Cut into sizes similar to hemp seeds. Each dose is 5 qianbi. Use 1.5 zhan of water, add 1 fen of crushed fresh ginger, decoct until 1 zhan remains. Strain and take warm at any time. Take three times daily.
Treatment for Hong Kong foot flaccidity and weakness, Bi syndrome with swelling and fullness, urgency below the heart and constipation. Chaihu Zhuling Tang (Bupleurum and Polyporus Decoction):
Chaihu (Radix Bupleuri, remove sprouts), Zhuling (Polyporus, remove black skin), Zisu Jingye (Folium et Caulis Perillae, finely cut, each 1.5 liang), Chenjupi (Pericarpium Citri Reticulatae, wash with water to remove white pith, bake), Fangji (Radix Stephaniae Tetrandrae), Damaren (Semen Cannabis Sativae, stir-fry and grind), Yuliren (Semen Pruni Persicae, blanch to remove skin and tips, stir-fry and grind, each 1 liang), Sangbaipipi (Cortex Morus Radicis, cut and stir-fry until yellow, 2.5 liang).
The above eight ingredients. Except for Damaren and Yuliren which are ground, coarsely crush and sieve the rest, mix evenly with the ground medicines. Each dose is 3 qianbi. Use 1 zhan of water, decoct until 0.7 zhan remains. Strain and take on an empty stomach, repeat at noon and dusk.
Treatment for Hong Kong foot flaccidity and weakness with rebellious Qi, Bi syndrome with distension and fullness, inability to eat. Zhishi San (Immature Bitter Orange Powder):
Zhishi (Fructus Aurantii Immaturus, remove pulp, stir-bran fry until yellow, 1 liang), Gui (Ramulus Cinnamomi, remove rough bark, 2 liang), Baizhu (Rhizoma Atractylodis Macrocephalae), Chifuling (Poria Cocos with black skin removed, each 3 qian).
The above four ingredients. Pound and sieve into fine powder. Each dose is 3 qianbi, taken with warm wine on an empty stomach, repeat near evening.
Treatment for Hong Kong foot flaccidity and weakness with swelling and pain. Duzhong Tang (Eucommia Decoction):
Duzhong (Cortex Eucommiae, remove rough bark, slightly roast, pound into fine powder, 3 liang), Shengdihuang (Radix Rehmanniae Recens, juice 3 he).
The above two ingredients. First decoct Duzhong powder in 2 zhan of water until 1 zhan remains. Strain, add 3 he of Shengdihuang juice and 2 he of wine, boil for three to five boils. Take warm. One dose on an empty stomach and one near evening.
Treatment for chronic deficiency in Hong Kong foot, pulse coming deep and thin, submerging and tonifying. Cao Gong Zhongru Wan (Lord Cao's Cerussite Pill):
Liancheng Zhongrufen (Prepared Halloysitum Rubrum, 3 liang), Shihu (Lithospermum? Note: Text says Shi Hu, likely referring to a mineral or herb contextually distinct from standard Shi Hu, kept as Shi Hu), Shihu (Rhizoma Lithospermi? Context implies mineral/stone drug, keeping literal translation Shi Hu, remove roots and nodes, 2 liang), Wuzhuyu (Fructus Evodiae, soak in water three times, stir-fry until yellow, 3 qian), Tusizi (Semen Cuscutae, soak in wine for three nights, pound into paste, stir-fry, 2 liang).
The above four ingredients. Except for Zhongrufen, pound and sieve the rest into fine powder. Mix with refined honey to form pills the size of mulberry seeds. Each dose is 30 pills, taken before meals with Ginseng and Jujube decoction. If Qi stagnation is felt, take Qi-regulating medicine. Do not overdose.
Treatment for chronic deficiency and flaccidity in Hong Kong foot. Ru Jian Liuhuang San (Milk-Boiled Sulfur Powder):
Huangniuru (Cow's Milk, 3 sheng), Liuhuang (Sulfur, ground to powder, 1 liang).
The above two ingredients. First boil cow's milk until reduced by half. Each dose uses 5 he of milk, add 2 qian of Liuhuang powder, mix and take. After taking, cover with thick clothes and lie down to induce sweating. Avoid wind. Repeat at noon and dusk. If sweat occurs, do not take again. If the disease is not cured, it can be taken again after three to five days.
Treatment for chronic deficiency in Hong Kong foot, pulse deep, thin, and weak. Duhuo Jiu (Angelica Pubescens Wine):
Duhuo (Radix Angelicae Pubescentis, remove rhizome), Fuzi (Radix Aconiti Lateralis Preparata, cracked, remove skin and umbilicus, each 2.5 liang).
The above two ingredients. Cut into sizes similar to hemp seeds, place in a silk bag, put in a porcelain bottle, soak in 5 sheng of strong wine, seal with honey. After three days, take as needed. Start with 1 he, increase to 0.5 zhan, maintaining a continuous mild alcoholic warmth in the body. If ineffective, continue taking until cured.
Treatment for excessive Wind toxin in Hong Kong foot, numbness of skin and flesh, pain in bones and sinews, insensibility of the dorsum pedis, flaccidity and weakness of hands and feet, instability when standing. Fuzi Tang (Aconite Decoction):
Fuzi (Radix Aconiti Lateralis Preparata, one piece weighing half liang, cracked, remove skin and umbilicus), Mahuang (Herba Ephedrae, remove roots and nodes, 1.5 liang), Xingren (Semen Pruni Armeniacae, soak in water, remove skin and tips, use double kernels, stir-fry until yellow, 40 seeds), Xixin (Herba Asari, remove sprouts and leaves, 3 qian), Xiong (Radix Chuanxiong, 1 liang 1 qian), Niuxi (Radix Achyranthis Bidentatae, remove sprouts, soak in wine, bake dry), Danshen (Radix Salviae Miltiorrhizae, remove roots and nodes), Fangfeng (Radix Saposhnikoviae, remove forked parts), Duhuo (Radix Angelicae Pubescentis, remove rhizome), Wujiaopi (Cortex Acanthopanacis, roast until yellow, each 1 liang).
The above ten ingredients. Cut into sizes similar to hemp seeds. Each dose is 5 qianbi. Use 1.5 zhan of water. Add 0.5 fen of crushed fresh ginger, decoct together until 1 zhan remains. Strain and take warm. On an empty stomach, at noon and dusk, cover with clothes to induce slight sweating.
Treatment for Hong Kong foot flaccidity and weakness, painful Bi syndrome with swelling and fullness. Liubaipi Tang (Willow White Bark Decoction):
Liubaipi (Cortex Salicis Albae, 3 sheng, finely cut into sizes similar to chess pieces).
The above single ingredient. Use 1 dan of water, decoct to obtain 6 dou. Take a small jar capable of holding 1 dan, pour the decoction into it. Place two wooden bars across the bottom of the jar. Step on them with feet. The liquid should not exceed the Sanyli acupoint. Repeat this three times, and swelling will subside. Keep the liquid hot during soaking.
Treatment for Hong Kong foot flaccidity and weakness, painful Bi syndrome with swelling and fullness. Chi Tang (Fermented Soybean Decoction):
Chi (Semen Sojae Preparatum, 3 sheng), Shujiao (Fructus Zanthoxyli, 1 sheng, raw), Shengjiang (Rhizoma Zingiberis Recens, with skin, cut, 2 jin).
The above three ingredients. Use 1.5 sheng of water, boil once. Store in a small jar. Place two small wooden bars under the jar. Step on the wood. The liquid should not exceed the Sanyli acupoint. Plug the mouth of the jar with old clothes. Do not let air pass. Slightly burn the jar with chaff to keep the liquid hot. If too hot inside the jar, pause for a moment. After soaking feet, quickly cover both feet with cotton clothes to keep warm. Avoid cold and wind. Best to soak before bed.
Treatment for leg weakness and flaccidity due to Wind stroke. Qianghuo Tang (Notopterygium Decoction):
Qianghuo (Rhizoma et Radix Notopterygii, remove rhizome, 5 liang), Gegen (Radix Puerariae Lobatae, cut), Gui (Ramulus Cinnamomi, remove rough bark), Banxia (Rhizoma Pinelliae, wash seven times with water to remove slipperiness, bake dry, each 4 liang), Ganjiang (Rhizoma Zingiberis Secatum, processed, 3 liang), Fangfeng (Radix Saposhnikoviae, remove forked parts, 1 liang), Gancao (Radix Glycyrrhizae, roasted and cut, 2 liang).
The above seven ingredients. Coarsely crush and sieve. Each dose is 5 qianbi. Use 1.5 zhan of water, decoct until 1 zhan remains. Strain and take warm. Take three doses from empty stomach until noon.
Treatment for Hong Kong foot tendon spasm preventing walking, dry pain without swelling, gradual emaciation; or swelling, fullness, flaccidity, and weakness. Shuodie Fumigation Method:
Take 3 jin of Shuodie (Polygonum Multiflorum? Note: Text says Shu Die, likely referring to a specific plant used for fumigation, traditionally Polygonum or similar, kept as Shuodie), including roots and leaves, cut into lengths of 2-3 cun. Dig a pit in the ground, one chi wide. Place chopped firewood in the pit, burn until slightly red, clear out ash and fire. Arrange Shuodie around the four sides of the pit, one row on the side, one row in the center. Cover the pit mouth with an old felt blanket. When Shuodie wilts, add 1-2 jin of fresh material. Place a mat at the edge of the pit for sitting, and a fir plank over the pit floor. Stand on the plank to fumigate. Cover feet with cotton clothes to prevent gas leakage. If too hot, pause briefly, then return feet to the pit. If there are hot spots on the sides, arrange Shuodie accordingly. Stop if the patient is exhausted. Lie down comfortably and warmly, cover with cotton clothes, avoid wind exposure. Replenish with food. Fumigate once every three to five days. For severe cases, no more than three to five fumigations are needed for cure.
Treatment for Wind-toxin Hong Kong foot flaccidity and weakness, acute pain in waist and spine, arm soreness and pain, phlegm congestion in chest and heart, rebellious Qi and flank fullness. Bai Fuling Wan (White Poria Pill):
Bai Fuling (Poria Cocos with black skin removed), Shihu (Rhizoma Lithospermi? Or Stone Herb, remove roots), Roucongrong (Herba Cistanches, soak in wine, slice, bake), Suanzaoren (Semen Ziziphi Spinosae, stir-fry), Wuweizi (Fructus Schisandrae, stir-fry), Tianxiong (Radix Aconiti Kusnezoffii Preparata, cracked, remove skin and umbilicus), Xuduan (Radix Dipsaci), Zexie (Rhizoma Alismatis, cut), Danggui (Radix Angelicae Sinensis, slice and bake, each 1.5 liang), Renshen (Radix Ginseng), Baijili (Fructus Tribuli, stir-fry), Lingyangjiao (Cornu Saigae Tataricae, shaved), Zhike (Fructus Aurantii, remove pulp, stir-bran fry), Wujiaopi (Cortex Acanthopanacis, cut), Huangqi (Radix Astragali, roasted and cut), Fangfeng (Radix Saposhnikoviae, remove forked parts), Xixin (Herba Asari, remove sprouts and leaves, stir-fry), Duhuo (Radix Angelicae Pubescentis, remove rhizome), Duzhong (Cortex Eucommiae, remove rough bark, roast with butter), Gancao (Radix Glycyrrhizae, cut and roasted, each 1 liang), Shudihuang (Radix Rehmanniae Praeparata, baked), Baibinglang (Areca Seed, raw), Luanjiao (Colla Cornus Cervi, roasted until dry), Yunmufen (Halloysitum Album, separately ground, each 2 liang), Tusizi (Semen Cuscutae, soaked in wine until soft, separately ground, 3 liang).
The above twenty-five ingredients. First, pound and sieve the first twenty-three ingredients into powder. Add the finely ground Yunmufen and Tusizi, knead and mix evenly, then sieve again. Form pills with refined honey, size of mulberry seeds. Every morning and evening before meals, take 20 pills with jujube decoction.
Treatment for Hong Kong foot numbness of skin and flesh, pain in bones and sinews, flaccidity and weakness of hands and feet, difficulty walking. Mahuang Duhuo Tang (Ephedra and Angelica Pubescens Decoction):
Mahuang (Herba Ephedrae, remove roots, cut), Duhuo (Radix Angelicae Pubescentis, remove rhizome), Xingren (Semen Pruni Armeniacae, soak in water, remove skin and tips, use double kernels, stir-fry, each 1.5 liang), Danshen (Radix Salviae Miltiorrhizae), Fuzi (Radix Aconiti Lateralis Preparata, cracked, remove skin and umbilicus), Wujiaopi (Cortex Acanthopanacis), Xixin (Herba Asari, remove sprouts and leaves), Niuxi (Radix Achyranthis Bidentatae, soak in wine, slice, bake), Xiong (Radix Chuanxiong), Sangbaipipi (Cortex Morus Radicis), Baijiangcan (Bombyx Batryticatus, stir-fry, each 1 liang).