论曰风湿毒瓦斯之中人，多从下起，足先受之，故名香港脚。毒瓦斯循经上入于肺，则气道奔
迫，升降不顺，故令上气喘满。
治香港脚冲上入腹，腹急，气上胸膈，真气欲绝。半夏汤方
半夏（二两汤洗去滑炒黄） 桂（去粗皮三两） 干姜（炮一两） 蜀漆（一两半） 甘
草（炙
锉） 人参 附子（炮裂去皮脐各半两）
上七味锉如麻豆。每服三钱匕，水一盏，煎至六分，去滓温服、空腹，日午晚间各一。
初服稍停药力，恐气上不得下，宜减之。
治香港脚上喘，心下妨闷，不能食。茯苓汤方
赤茯苓（去黑皮锉） 桑根白皮（炙锉） 白术（各二两半） 陈橘皮（汤浸去白焙） 防
己（
各一两半） 旋复花（三分） 槟榔（锉） 大黄（锉微炒） 杏仁（汤浸去皮尖双仁炒黄
八十枚）
并生姜一分拍破，同煎至六分。去滓空腹服，日晚再服。
治香港脚上喘，心下妨闷。桂苓汤方
桂（去粗皮三两） 泽泻（锉） 赤茯苓（去黑皮锉） 干姜（炮各二两）
上四味。粗捣筛，每服三钱匕，水一盏，煎至七分，去滓，空腹日午日晚各一。
治风湿香港脚。乐令黄 汤方
黄 （炙锉） 桂（去粗皮） 芍药（各三两） 细辛（去苗叶） 麦门冬（去心焙） 赤
茯苓（
去黑皮） 当归（切焙） 陈橘皮（去白焙） 人参 前胡（去芦头） 甘草（炙锉各二两）
半夏
（四两汤洗去滑焙） 乌头（十五枚炮裂去皮脐） 蜀椒（去目及合口者炒出汗一两）
上一十四味。锉如麻豆，每服五钱匕，水一盏半，生姜三片，大枣三枚劈，同煎至一盏，
去滓温服，日三夜一。
治香港脚面目肿，上气眠卧不得，气欲绝。桑白皮汤方
桑根白皮（炙黄三两） 陈橘皮（汤浸去白焙一两） 葶苈子（纸上炒令紫色别捣二两）
上三味。除葶苈别捣外，粗捣筛，入葶苈末，再捣匀，每服三钱匕，先用枣五枚劈破，
水一盏半，煎至一盏，去滓入药末，再煎至七分，去滓温服，如人行五里以来，再服，服后
当利一二行，肿气下即瘥，三五日服一剂。
治香港脚胀满，妨闷喘促。大麻子汤方
大麻子（炒） 槟榔末（一钱） 生姜汁（一合）
上三味。先以童子小便一盏，研麻子取汁，与槟榔末生姜汁，银器盛，重汤上微煎三两
沸，空心温服。
治香港脚胀满。大腹汤方
大腹（连皮细锉四枚捣末） 杏仁（汤浸退皮尖双仁研碎三七枚）
上二味同拌，再捣研匀。以童子小便一盏，药三钱匕，煎至七分去滓，空腹日午各一服
治香港脚肺气，不问冷热，一切气。紫苏汤方
紫苏叶（一两半锉） 白茯苓（去黑皮一两） 陈橘皮（汤浸去白焙半两）
上三味，粗捣筛。每服三钱匕，水一盏，入生姜半分拍破，同煎至七分，去滓空腹温
服。日晚再服，若患人四体热者，加麦门冬一两去心焙，冷者加浓朴一两去粗皮，生姜汁炙，
小便涩少者，加桑白皮一两炙，大便秘者，加槟榔仁一两锉，霍乱腹胀，加甘草一两炙锉，
疟加黄连人参。皆随病状，以意加减。
治香港脚兼上气痹满不能食。牛膝散方
牛膝（细切酒浸焙干） 砂（研如粉） 细辛（去苗叶） 丹参（去芦头） 白术 郁
李仁（
汤浸退皮尖别研各三两）
上六味，除研者外。捣罗为散，再入研药拌匀。每服两钱匕，食前以温酒调服，春秋冬
三月宜服；夏热不可服之；春秋服消肿利小便。兼补益，除风虚冷胀少食。
治香港脚上气。枳实散方
枳实（去瓤麸炒二两） 桂（去粗皮四两） 赤茯苓（去黑皮） 白术（各一两一分）
上四味，捣罗为散。每服一钱匕，食前温酒调服，渐增至二钱匕，日午晚卧各一服。
治香港脚上冲，头目面浮肿，咳嗽喘乏气促，心胸胀，两胁硬腰重，小便涩，胯冷、 膝
疼肿无力。海蛤丸方
海蛤（研如粉） 诃黎勒皮（焙） 柴胡（去苗） 赤茯苓（去黑皮） 杏仁（汤浸去
皮尖双仁
麸炒） 赤芍药 牵牛子（炒令熟各一两半） 陈橘皮（汤浸去白焙） 桑根白皮（炙锉） 贝
母
（去心焙） 白槟榔（锉） 大黄（锉炒） 郁李仁（汤浸去皮别研） 枳壳（去瓤麸炒各
一两）
上一十四味。捣罗为末，炼蜜和丸，如梧桐子大。每日空腹煎枣汤，下二十丸。日午再
服。
治香港脚咳嗽。贝母丸方
贝母（去心三分） 蛤蚧（一对洗净涂酥炙黄） 紫菀（去苗土） 防己（细锉） 桑
根白皮（
锉炒） 人参 赤茯苓（去黑皮锉） 款冬花 天门冬（去心焙） 葶苈子（隔纸炒） 大
黄（锉
炒
上一十六味。捣罗为末，炼蜜和丸，如梧桐子大。每服一十丸，空腹米饮下，日午再服
治香港脚面目浮肿，上气眠卧不得，若卧气即欲绝。桑白皮汤方
桑根白皮（炙锉六两） 陈橘皮（浸去白焙二两） 葶苈（隔纸炒一两捣如膏） 大枣
（二十
枚去核）
上四味。先将前二味锉碎，用水六升，煮取二升，去滓次下枣；又煮取一升，去枣内葶
苈膏，如大枣许；再煮三分减一、顿服，当利三二行，水气下、日一服。
治香港脚上气闷绝者，开胃口，令人能食。姜汁饮方
生姜（四两）
上一味和皮捣取自然汁，早晨取半合，以温汤半合和服之，每如人行十里一服，日三。
治香港脚、上气抬肩，喘冲心痛。乌豆汤渫脚方
乌豆（二斗）
上一味。以水五斗，煮取二斗五升，分在两故瓮中盛，每瓮中浸一脚，遣人从膝向下淋
洗百遍以来，久病者，不过再浸即瘥。
渫脚后。服加减木香丸方
木香 白芍药 枳壳（去瓤麸炒各二分） 槟榔（四枚细锉） 桂（去粗皮半两） 大
黄（锉
上六味，捣罗为末，炼蜜丸如梧桐子大，空腹酒下十五丸，日午再服，渐加至三十丸，
以大便通利为度。
治香港脚上气喘满，及毒瓦斯冲心烦闷。柴胡汤方
柴胡（去苗） 赤芍药（各一两半） 旋复花 紫苏茎叶（各一两） 桑白皮（炙锉二
两） 大
腹（连皮锉二枚）
上六味，粗捣筛。每服三钱匕，水一盏，入生姜半分劈碎，同煎至七分，去滓下朴硝一
字，更煎一两沸温服。
治香港脚上气，喘满呕逆，咳嗽减食。萆 汤方
萆 当归（切焙） 木香 牛膝（酒浸切焙） 桂（去粗皮） 黄连（去须各一两） 延
胡索
仙（去苗土）
射干（各一两半）
上一十五味，粗捣筛。每服五钱匕，水一盏半，入生姜五片，煎取八分，去滓温服，不
拘时。
治香港脚乘肺，上气喘促。杏仁煎方
杏仁（汤浸去皮尖双仁一两炒） 百合（细劈洗令净一分入水二升同研） 甘草（生） 麻
黄
（不去节） 射干（各半两）
上五味，除百合外。细锉入在百合汁中，煎取一升，去滓贮在净器中，每日不限早晚，
取一合服之，此药不得久停，惟宜旋合。
治香港脚循经上乘于肺，令人上气喘满。旋复花汤方
旋复花（三两） 羌活（去芦头） 芎 桑根白皮（炙锉） 青橘皮（去白焙） 附
子（炮裂
去皮脐） 桂（去粗皮） 赤小豆（各一两） 莱菔子（炒香一两）
上九味。锉如麻豆，每服三钱匕，以水一大盏，煎至七分，去滓空心温服。
治香港脚肿满上气。橘皮防己汤方
陈橘皮（汤浸去白焙） 防己 桑根白皮（锉各二两） 吴茱萸（汤洗焙干炒） 槟榔
（锉各
一两） 大腹（并子锉七枚） 生姜（锉炒三两） 甘草（炙锉半两）
上八味，粗捣筛。每服五钱匕，水一盏半，入葱白三茎切，同煎至八分，去滓温服，空
心食前。
治香港脚冲心烦闷，上气喘闷。木香槟榔汤方
木香（三分） 槟榔（半两锉）
上二味，粗捣罗。每服三钱匕，水一盏，入葱白二寸劈碎，煎至七分，去滓下红雪二钱，
生姜汁半合，童子小便一合，再煎一两沸温服。
治香港脚抬肩喘。豌豆汤淋渫方
豌豆（二升）
上一味。用水五斗，葱白十茎劈碎，椒三分，煮取汤二斗，倾入两瓷瓮，以脚各安在一
瓮中浸，遣人从膝上淋洗百遍，如无瓷瓮，瓦瓮亦得，患极者，不过两次效。
[Discussion] Wind-dampness and toxic factors invading the human body mostly start from the lower part, with the feet being affected first; hence it is named Hong Kong Foot (Hongxiangjiao, a term for beriberi or gout-like swelling of the feet). The toxic factors follow the meridians upward into the Lung, causing the airway to be rushed and forced, with ascending and descending functions failing to proceed smoothly, thus leading to upper asthma (Shangchuan) and chest fullness.
Banxia Decoction (Pinellia Decoction) for treating Hong Kong Foot where Qi rushes into the abdomen, causing abdominal urgency, Qi rebelling to the chest and diaphragm, and true Qi about to perish:
Banxia (Pinelliae Rhizoma, 2 liang, washed in hot water to remove slipperiness, stir-fried until yellow) Guizhi (Cinnamomi Ramulus, 3 liang, removed coarse bark) Ganjiang (Zingiberis Rhizoma Praeparatum, 1 liang, processed) Shuqi (Polygalae Radix, 1.5 liang) Gancao (Glycyrrhizae Radix et Rhizoma, honey-fried and crushed) Renshen (Ginseng Radix) Fuzi (Aconiti Lateralis Radix Praeparata, processed until cracked, skin and umbilicus removed, 0.5 liang each)
The above seven herbs are crushed like hemp seeds. Each dose is 3 qian bi, boiled with 1 zhan of water until reduced to 6 fen. Strain the dregs and take warm on an empty stomach, once at noon and once in the evening. If the initial dose feels too strong, fearing Qi may rise instead of descending, reduce the dosage.
Fuling Decoction (Poria Decoction) for treating Hong Kong Foot with upper asthma, epigastric oppression, and inability to eat:
Chifuling (Poria cum Risus, 2.5 liang each, removed black skin and crushed) Sangbaipi (Mori Cortex, 2.5 liang, honey-fried and crushed) Baizhu (Atractylodis Macrocephalae Rhizoma, 2.5 liang each) Chenju pi (Citri Reticulatae Pericarpium, soaked in hot water, white pith removed, dried) Fangji (Stephaniae Tetrandrae Radix, 1.5 liang each) Xuanfuhua (Inulae Flos, 3 fen) Binglang (Arecae Semen, crushed) Dahuang (Rhei Radix et Rhizoma, crushed, slightly stir-fried) Xingren (Armeniacae Semen Amarum, soaked in hot water, skin and tip removed, double-kernel, stir-fried until yellow, 80 seeds)
Add 1 fen of Shengjiang (Zingiberis Rhizoma Recens), smashed, and decoct together until reduced to 6 fen. Strain the dregs and take on an empty stomach, with another dose in the evening.
Guiling Decoction (Cinnamon Twig and Poria Decoction) for treating Hong Kong Foot with upper asthma and epigastric oppression:
Guizhi (Cinnamomi Ramulus, 3 liang, removed coarse bark) Zexie (Alismatis Rhizoma, crushed) Chifuling (Poria cum Risus, 2 liang each, removed black skin and crushed) Ganjiang (Zingiberis Rhizoma Praeparatum, 2 liang each, processed)
The above four herbs are coarsely pounded and sifted. Each dose is 3 qian bi, boiled with 1 zhan of water until reduced to 7 fen. Strain the dregs and take on an empty stomach, at noon, and in the evening.
Le Ling Huangqi Decoction (Ling Official Astragalus Decoction) for treating wind-dampness Hong Kong Foot:
Huangqi (Astragali Radix, 3 liang each, honey-fried and crushed) Guizhi (Cinnamomi Ramulus, 3 liang each, removed coarse bark) Shaoyao (Paeoniae Radix, 3 liang each) Xixin (Asari Radix et Rhizoma, removed seedlings and leaves) Maimendong (Ophiopogonis Radix, heart removed, dried) Chifuling (Poria cum Risus, removed black skin) Danggui (Angelicae Sinensis Radix, sliced and dried) Chenju pi (Citri Reticulatae Pericarpium, white pith removed, dried) Renshen (Ginseng Radix) Qianhu (Peucedani Radix, removed rhizome head) Gancao (Glycyrrhizae Radix et Rhizoma, 2 liang each, honey-fried and crushed) Banxia (Pinelliae Rhizoma, 4 liang, washed in hot water to remove slipperiness, dried) Wutou (Aconiti Radix, 15 pieces, processed until cracked, skin and umbilicus removed) Shujiao (Zanthoxyli Pericarpium, eyes and closed-mouth ones removed, stir-fried until oil comes out, 1 liang)
The above fourteen herbs are crushed like hemp seeds. Each dose is 5 qian bi, boiled with 1.5 zhan of water, 3 slices of Shengjiang (Zingiberis Rhizoma Recens), and 3 dates (Ziziphi Jujubae Fructus) split open, until reduced to 1 zhan. Strain the dregs and take warm, three times during the day and once at night.
Sangbaipi Decoction (Mulberry Root Bark Decoction) for treating Hong Kong Foot with facial and eye swelling, upper asthma preventing sleep, and Qi about to perish:
Sangbaipi (Mori Cortex, honey-fried until yellow, 3 liang) Chenju pi (Citri Reticulatae Pericarpium, soaked in hot water, white pith removed, dried, 1 liang) Tinglizi (Descurainiae Semen seu Lepidii Semen, stir-fried on paper until purple color, separately pounded, 2 liang)
For the above three herbs, except for Tinglizi which is separately pounded, coarsely pound and sift the others, add the Tinglizi powder, and mix evenly. Each dose is 3 qian bi. First, boil 5 dates (Ziziphi Jujubae Fructus) split open in 1.5 zhan of water until reduced to 1 zhan. Strain the dregs, add the medicine powder, and decoct again until reduced to 7 fen. Strain the dregs and take warm. After walking for five li, take another dose. After taking, there should be one or two bowel movements. When the swelling and Qi subside, the condition improves. Take one dose every three to five days.
Damaizi Decoction (Hemp Seed Decoction) for treating Hong Kong Foot with distension and fullness, oppression, and rapid breathing:
Damaizi (Cannabis Fructus, stir-fried) Binglang powder (Arecae Semen powder, 1 qian) Shengjiangzhi (Zingiberis Rhizoma Recens juice, 1 he)
For the above three herbs, first use 1 zhan of Tongzi Xiaonien (Child's Urine) to grind the hemp seeds to extract juice. Mix with Binglang powder and Shengjiangzhi. Place in a silver vessel and gently boil over water for two or three boils. Take warm on an empty stomach.
Dafu Decoction (Areca Catechu Decoction) for treating Hong Kong Foot distension and fullness:
Dafu (Arecae Pericarpium, finely crushed with skin, 4 pieces, pounded to powder) Xingren (Armeniacae Semen Amarum, soaked in hot water, skin and tip removed, double-kernel, ground, 3-7 pieces)
Mix the above two herbs and grind them evenly. Use 1 zhan of Tongzi Xiaonien (Child's Urine) and 3 qian bi of medicine, decoct until reduced to 7 fen. Strain the dregs and take on an empty stomach and at noon.
Zisu Decoction (Perilla Leaf Decoction) for treating Hong Kong Foot affecting the Lung Qi, regardless of cold or heat, for all types of Qi stagnation:
Zisuye (Perillae Folium, 1.5 liang, crushed) Baifuling (Poria, 1 liang, removed black skin) Chenju pi (Citri Reticulatae Pericarpium, soaked in hot water, white pith removed, dried, 0.5 liang)
Coarsely pound and sift the above three herbs. Each dose is 3 qian bi, boiled with 1 zhan of water and 0.5 fen of Shengjiang (Zingiberis Rhizoma Recens), smashed, until reduced to 7 fen. Strain the dregs and take warm on an empty stomach. Take another dose in the evening. If the patient has heat in the four limbs, add 1 liang of Maimendong (Ophiopogonis Radix), heart removed and dried. For cold, add 1 liang of Houpo (Magnoliae Officinalis Cortex), removed coarse bark, processed with Shengjiangzhi. For scanty and difficult urination, add 1 liang of Sangbaipi (Mori Cortex), honey-fried. For constipation, add 1 liang of Binglang Ren (Arecae Semen kernel), crushed. For cholera with abdominal distension, add 1 liang of Gancao (Glycyrrhizae Radix et Rhizoma), honey-fried and crushed. For malaria, add Huanglian (Coptidis Rhizoma) and Renshen (Ginseng Radix). Adjust according to symptoms.
Niuxi Powder (Achyrathes Powder) for treating Hong Kong Foot with upper Qi obstruction, distension, fullness, and inability to eat:
Niuxi (Cyathulae Radix, finely sliced, soaked in wine, dried) Sha (Borax, ground to powder) Xixin (Asari Radix et Rhizoma, removed seedlings and leaves) Danshen (Salviae Miltiorrhizae Radix, removed rhizome head) Baizhu (Atractylodis Macrocephalae Rhizoma) Yuliren (Pruni Semen, soaked in hot water, skin and tip removed, separately ground, 3 liang each)
For the above six herbs, except those to be ground, pound and sieve into powder, then mix with the ground medicines. Each dose is 2 qian bi, taken before meals with warm wine. Suitable for spring, autumn, and winter months; not suitable for summer heat. In spring and autumn, it reduces swelling and promotes urination. It also tonifies and benefits, dispels wind-cold and deficiency, and treats distension and poor appetite.
Zhishi Powder (Immature Bitter Orange Powder) for treating Hong Kong Foot with upper Qi:
Zhishi (Aurantii Fructus Immaturus, pulp removed, bran-fried, 2 liang) Guizhi (Cinnamomi Ramulus, 4 liang, removed coarse bark) Chifuling (Poria cum Risus, removed black skin) Baizhu (Atractylodis Macrocephalae Rhizoma, 1.1 liang each)
Pound and sieve the above four herbs into powder. Each dose is 1 qian bi, taken before meals with warm wine, gradually increasing to 2 qian bi. Take once at noon and once before bed.
Haige Pill (Clam Pill) for treating Hong Kong Foot Qi rushing upward, causing head and face swelling, coughing, asthma, shortness of breath, chest and heart distension, hardness in both hypochondria, heavy waist, scanty urine, cold groin, and painful, swollen, weak knees:
Haige (Concha Arcae, ground to powder) Helilepi (Terminaliae Chebulae Pericarpium, dried) Chaihu (Bupleuri Radix, removed seedlings) Chifuling (Poria cum Risus, removed black skin) Xingren (Armeniacae Semen Amarum, soaked in hot water, skin and tip removed, double-kernel, bran-fried) Chishao Yao (Paeoniae Radix Rubra) Qianniuzi (Pharbitidis Semen, stir-fried until cooked, 1.5 liang each) Chenju pi (Citri Reticulatae Pericarpium, soaked in hot water, white pith removed, dried) Sangbaipi (Mori Cortex, honey-fried and crushed) Beimu (Fritillariae Bulbus, heart removed, dried) Bai Binglang (Arecae Semen, crushed) Dahuang (Rhei Radix et Rhizoma, crushed and stir-fried) Yuliren (Pruni Semen, soaked in hot water, skin removed, separately ground) Zhike (Aurantii Fructus, pulp removed, bran-fried, 1 liang each)
Pound and sieve the above fourteen herbs into powder. Mix with refined honey to form pills the size of paulownia seeds. Take 20 pills with date soup on an empty stomach daily. Take another dose at noon.
Beimu Pill (Fritillaria Pill) for treating Hong Kong Foot cough:
Beimu (Fritillariae Bulbus, 3 fen, heart removed) Gejie (Gekko, 1 pair, cleaned, coated with butter, honey-fried until yellow) Ziwan (Asternis Radix, removed seedlings and soil) Fangji (Stephaniae Tetrandrae Radix, finely crushed) Sangbaipi (Mori Cortex, crushed and stir-fried) Renshen (Ginseng Radix) Chifuling (Poria cum Risus, 1 liang each, removed black skin and crushed) Kuandonghua (Farfarae Flos) Tiandong (Asparagi Radix, heart removed, dried) Tinglizi (Descurainiae Semen seu Lepidii Semen, stir-fried between papers) Dahuang (Rhei Radix et Rhizoma, crushed and stir-fried)
The above sixteen herbs are pounded and sieved into powder. Mix with refined honey to form pills the size of paulownia seeds. Take 10 pills with rice drink on an empty stomach, and another dose at noon.
Sangbaipi Decoction (Mulberry Root Bark Decoction) for treating Hong Kong Foot with facial and eye swelling, upper asthma preventing sleep, and Qi about to perish when lying down:
Sangbaipi (Mori Cortex, 6 liang, honey-fried and crushed) Chenju pi (Citri Reticulatae Pericarpium, soaked, white pith removed, dried, 2 liang) Tinglizi (Descurainiae Semen seu Lepidii Semen, 1 liang, stir-fried between papers, pounded into paste) Dazao (Ziziphi Jujubae Fructus, 20 pieces, pits removed)
First, crush the first two herbs, boil in 6 sheng of water until reduced to 2 sheng. Strain the dregs, then add the dates. Boil until reduced to 1 sheng. Remove the dates, add the Tinglizi paste (size of a date). Boil until reduced by one-third. Take in one dose. There should be two or three bowel movements. As the water Qi subsides, take one dose daily.
Jiangzhi Yin (Ginger Juice Drink) for treating Hong Kong Foot with upper Qi obstruction preventing eating, opening the stomach and enabling food intake:
Shengjiang (Zingiberis Rhizoma Recens, 4 liang)
Crush the herb with skin to extract natural juice. In the morning, take 0.5 he, mixed with 0.5 he of warm water. Take every time a person walks ten li, three times a day.
Wudou Soup (Black Soybean Soup) for foot soaking, treating Hong Kong Foot with upper Qi raising shoulders, asthma rushing to the heart, and pain:
Wudou (Soja Glycines Semen Nigrum, 2 dou)
Boil in 5 dou of water until reduced to 2.5 dou. Divide into two old urns. Soak one foot in each urn. Have someone pour water from the knee down for about 100 times. For chronic cases, no more than two soaks are needed for recovery.
After foot soaking, take Jiajian Muxiang Wan (Modified Costus Pill):
Muxiang (Aucklandiae Radix) Baishao Yao (Paeoniae Radix Alba) Zhike (Aurantii Fructus, 0.2 fen each, pulp removed, bran-fried) Binglang (Arecae Semen, 4 pieces, finely crushed) Guizhi (Cinnamomi Ramulus, 0.5 liang, removed coarse bark) Dahuang (Rhei Radix et Rhizoma, crushed)
Pound and sieve the above six herbs into powder. Mix with refined honey to form pills the size of paulownia seeds. Take 15 pills with wine on an empty stomach, and another dose at noon. Gradually increase to 30 pills, stopping when bowel movements become smooth.
Chaihu Decoction (Bupleurum Decoction) for treating Hong Kong Foot with Qi rushing causing heart vexation and oppression, and upper asthma:
Chaihu (Bupleuri Radix, removed seedlings) Chishao Yao (Paeoniae Radix Rubra, 1.5 liang each) Xuanfuhua (Inulae Flos) Zisujingye (Perillae Caulis et Folium, 1 liang each) Sangbaipi (Mori Cortex, 2 liang, honey-fried and crushed) Dafu (Areca Catechu, 2 pieces, with skin crushed)
Coarsely pound and sift the above six herbs. Each dose is 3 qian bi, boiled with 1 zhan of water and 0.5 fen of Shengjiang (Zingiberis Rhizoma Recens), smashed, until reduced to 7 fen. Strain the dregs, add 1 zi of Poxiao (Natrii Sulfas), boil for one or two boils, and take warm.
Bixie Decoction (Dioscorea Hypoglauca Decoction) for treating Hong Kong Foot with upper Qi, asthma, fullness, vomiting, reverse flow, coughing, and reduced appetite:
Bixie (Dioscoreae Hypoglaucae Rhizoma) Danggui (Angelicae Sinensis Radix, sliced and dried) Muxiang (Aucklandiae Radix) Niuxi (Cyathulae Radix, soaked in wine, sliced and dried) Guizhi (Cinnamomi Ramulus, removed coarse bark) Huanglian (Coptidis Rhizoma, 1 liang each, removed whiskers) Yanhusuo (Corydalis Rhizoma) Xianmao (Curculiginis Rhizoma, removed seedlings and soil) Shegan (Belamcandae Rhizoma, 1.5 liang each)
Coarsely pound and sift the above fifteen herbs. Each dose is 5 qian bi, boiled with 1.5 zhan of water and 5 slices of Shengjiang (Zingiberis Rhizoma Recens) until reduced to 8 fen. Strain the dregs and take warm, at any time.
Xingren Decoction (Apricot Kernel Decoction) for treating Hong Kong Foot attacking the Lung, causing upper asthma and rapid breathing:
Xingren (Armeniacae Semen Amarum, 1 liang, soaked in hot water, skin and tip removed, double-kernel, stir-fried) Baihe (Lilii Bulbus, 1 fen, finely chopped, washed clean, ground with 2 sheng of water) Gancao (Glycyrrhizae Radix et Rhizoma, raw) Mahuang (Ephedrae Herba, joints not removed) Shegan (Belamcandae Rhizoma, 0.5 liang each)
Except for Baihe, finely chop the other four herbs and put them in the Baihe juice. Decoct until 1 sheng remains. Strain the dregs and store in a clean container. Take 1 he at any time of day or night. This medicine should not be stored for long; it is best to prepare fresh.
Xuanfuhua Decoction (Inula Flower Decoction) for treating Hong Kong Foot following meridians to attack the Lung, causing upper asthma and fullness:
Xuanfuhua (Inulae Flos, 3 liang) Qianghuo (Notopterygii Rhizoma et Radix, removed rhizome head) Xiongqiong (Ligustici Chuanxiong Rhizoma) Sangbaipi (Mori Cortex, honey-fried and crushed) Qingju pi (Citri Reticulatae Pericarpium, white pith removed, dried) Fuzi (Aconiti Lateralis Radix Praeparata, processed until cracked, skin and umbilicus removed) Guizhi (Cinnamomi Ramulus, removed coarse bark) Xiaochidou (Vigna Adzuki Semen, 1 liang each) Laifuzi (Raphani Semen, stir-fried until fragrant, 1 liang)
Crush the above nine herbs like hemp seeds. Each dose is 3 qian bi, boiled with 1 large zhan of water until reduced to 7 fen. Strain the dregs and take warm on an empty stomach.
Jupi Fangji Decoction (Tangerine Peel and Stephania Decoction) for treating Hong Kong Foot with swelling, fullness, and upper Qi:
Chenju pi (Citri Reticulatae Pericarpium, soaked in hot water, white pith removed, dried) Fangji (Stephaniae Tetrandrae Radix) Sangbaipi (Mori Cortex, 2 liang each, crushed) Wuzhuyu (Evodiae Fructus, washed in hot water, dried and stir-fried) Binglang (Arecae Semen, 1 liang each, crushed) Dafu (Areca Catechu, 7 pieces, including seeds, crushed) Shengjiang (Zingiberis Rhizoma Recens, 3 liang, crushed and stir-fried) Gancao (Glycyrrhizae Radix et Rhizoma, 0.5 liang, honey-fried and crushed)
Coarsely pound and sift the above eight herbs. Each dose is 5 qian bi, boiled with 1.5 zhan of water and 3 stalks of Congbai (Allii Fistulosi Bulbus), cut, until reduced to 8 fen. Strain the dregs and take warm on an empty stomach before meals.
Muxiang Binglang Decoction (Costus and Areca Decoction) for treating Hong Kong Foot with Qi rushing causing heart vexation and oppression, and upper asthma:
Muxiang (Aucklandiae Radix, 3 fen) Binglang (Arecae Semen, 0.5 liang, crushed)
Coarsely pound and sieve the above two herbs. Each dose is 3 qian bi, boiled with 1 zhan of water and 2 cun of Congbai (Allii Fistulosi Bulbus), smashed, until reduced to 7 fen. Strain the dregs, add 2 qian of Hongxue (Red Snow, a type of mineral salt), 0.5 he of Shengjiangzhi (Zingiberis Rhizoma Recens juice), and 1 he of Tongzi Xiaonien (Child's Urine). Boil for one or two boils and take warm.
Wandou Soup (Pea Soup) for foot soaking and washing, treating Hong Kong Foot with raised shoulders and asthma:
Wandou (Pisi Semen, 2 sheng)
Boil in 5 dou of water, 10 stalks of Congbai (Allii Fistulosi Bulbus), smashed, and 3 fen of Jiaojiao (Zanthoxyli Pericarpium), until 2 dou of soup remains. Pour into two porcelain urns. Place each foot in an urn. Have someone pour water from the knee up for 100 times. If porcelain urns are unavailable, earthenware urns can be used. For severe cases, two soaks are sufficient for effect.