（附∶足跟痛）
经曰∶湿甚则 肿。又曰∶当风取凉，醉以入房，多致香港脚。脚为肾之外候，司下体。肾属水
，主寒化。暴寒伤人，肾先受之；水湿居下，脚先受之。饮食入胃，脾湿下流，注于足而不散。风寒暑
湿，皆能患此，而湿热居多。始觉恶寒发热，类伤寒。但足胫红光肿痛，腿膝酸疼，小便短涩，恶
闻食气，甚至冲心作痛，吐绿色水，勿误作肿毒治。肿者，名湿香港脚，宜渗湿清热；不肿而痛，名
干香港脚，宜养血润燥。初宜败毒散发汗疏邪（瘟疫主方），冬月五积散（方见中寒），接本门主方；次服当
归拈痛汤（方见身痛）。脉浮风、紧寒、濡湿、数热，若乍大小，妄言不食，危。
主方 苍术 羌活 当归（各钱半） 防风 防己 泽泻 酒芩 苡仁 牛膝（各一钱）
上加姜、枣，水煎服。
筋挛加木瓜、灵仙；大便秘，枳实、大黄；小便涩，猪苓、茵陈或大腹皮、槟榔、荆芥、乌药
、陈皮、紫苏、枳壳、桑皮、木瓜加姜煎。
槟榔汤 治一切香港脚，疏壅利膈。
香附 陈皮 紫苏 槟榔 五加皮 木瓜 炙草（各七分） 加生姜一片，水煎服。
《澹寮方》香港脚入腹冲心，大痛肿满，大小便秘。
苏叶 苏子 木瓜（各七分） 羌活 白芍药 槟榔 枳壳（各五分） 青皮 甘草（各三分）
加姜煎，磨沉木香（各五分）调服。
鸡鸣散 男、妇香港脚风湿，流注筋脉，肿大痛极第一效。
槟榔（七枚） 陈皮 木瓜（各一两） 吴茱萸（二钱） 生姜 桔梗（各五钱） 紫苏（三钱）
上为粗末，分四服。隔宿用水三钟，煎钟半；渣，再水二钟，煎一钟。并置床头，五更分数次冷服
冬月略温服，后饼物压；天明大便黑粪，愈。
加味二妙丸 两足感湿热，肿痛如火，渐至胯腹，或香港脚常发。
苍术（四两） 黄柏（酒炒，二两） 牛膝 防己 当归（俱酒浸） 萆 （川） 龟板（酥
，酒炙） 熟地（捣。各一两）
上末，酒糊丸桐子大，每百丸空心盐酒下。
当归拈痛汤 湿热香港脚最效，及肢节肿痛，遍身大痛（方见身痛）。
简便方 香港脚必效。
苍术（制） 黄柏（制。各四钱）水煎，空心服。外包暖盐炒热熨，或小便乘热浸洗。多食煮白萝卜下气。
香港脚冲心∶白矾三两，用浆水一斗五升，煎数沸，浸脚良。
（附注：足跟痛）
《内经》说：湿气过重会导致肿胀。又说：迎风取凉，醉酒后行房事，多导致香港脚（一种以足胫肿痛、软弱无力为主要表现的疾病）。脚是肾的外在表现，主管下半身。肾属水，主寒化。突然受寒邪侵袭，肾先受到损伤；水湿积聚于下焦，脚先受到侵害。饮食进入胃中，脾的湿气向下流注，灌注到足部而不能消散。风、寒、暑、湿都能引起此病，但以湿热居多。起初感觉恶寒发热，类似伤寒（外感热病）。但足胫部发红、光亮、肿胀疼痛，腿膝酸疼，小便短少涩滞，厌恶闻到食物的气味，甚至出现邪气上冲心脏引起疼痛，呕吐绿色液体，不要误当作肿毒治疗。肿胀的，名叫湿香港脚，适宜用渗湿清热的方法；不肿而痛的，名叫干香港脚，适宜用养血润燥的方法。初期适宜用败毒散发汗祛邪（瘟疫的主方），冬季用五积散（方剂见中寒章节），接续本门的主方；随后服用当归拈痛汤（方剂见身痛章节）。脉象浮表示风邪，紧表示寒邪，濡表示湿邪，数表示热邪，如果脉象忽大忽小，胡言乱语不能进食，病情危重。
主方 苍术、羌活、当归（各一钱半）、防风、防己、泽泻、酒炒黄芩、薏苡仁、牛膝（各一钱）。
上方加生姜、大枣，用水煎服。
筋脉拘挛加木瓜、威灵仙；大便秘结加枳实、大黄；小便涩滞加猪苓、茵陈，或者大腹皮、槟榔、荆芥、乌药、陈皮、紫苏、枳壳、桑白皮、木瓜，加生姜煎服。
槟榔汤 治疗各种香港脚，疏通壅滞，宽利胸膈。
香附、陈皮、紫苏、槟榔、五加皮、木瓜、炙甘草（各七分）。加生姜一片，用水煎服。
《澹寮方》治疗香港脚邪气入腹冲心，剧烈疼痛，腹部肿胀满闷，大小便不通。
苏叶、苏子、木瓜（各七分）、羌活、白芍药、槟榔、枳壳（各五分）、青皮、甘草（各三分）。加生姜煎服，另磨沉香木、木香（各五分）调服。
鸡鸣散 治疗男、女香港脚风湿之邪，流注于筋脉，导致肿大疼痛至极，是第一有效方。
槟榔（七枚）、陈皮、木瓜（各一两）、吴茱萸（二钱）、生姜、桔梗（各五钱）、紫苏（三钱）。
上方研为粗末，分四次服用。隔夜用水三钟，煎至钟半；药渣再加水二钟，煎至一钟。将药液放在床头，五更时分分数次冷服。冬季略微温服，服药后吃些饼类食物压住药性；天亮后排出黑色粪便，即可痊愈。
加味二妙丸 两足感受湿热，肿痛如火，逐渐蔓延至胯部和腹部，或香港脚经常发作。
苍术（四两）、黄柏（酒炒，二两）、牛膝、防己、当归（均用酒浸泡）、萆薢（川产）、龟板（酥炙，酒炙）、熟地黄（捣碎，各一两）。
上方研末，用酒糊制成梧桐子大小的丸药，每次一百丸，空腹时用盐酒送服。
当归拈痛汤 对湿热香港脚最有效，以及肢体关节肿痛，全身剧烈疼痛（方剂见身痛章节）。
简便方 治疗香港脚必定有效。
苍术（制过）、黄柏（制过，各四钱）。用水煎服，空腹服用。外用暖盐炒热熨烫，或者在小便时乘热浸洗。多吃煮熟的白萝卜以顺气。
(Note: Heel Pain)
The *Classic of Internal Medicine* states: Excessive dampness leads to swelling. It also states: Cooling off in the wind and engaging in sexual intercourse after intoxication often lead to Hong Kong Foot (a disease characterized by swelling, pain, weakness, and numbness of the lower legs and feet). The feet are the external manifestation of the Kidney (*Shen*) and govern the lower body. The Kidney belongs to Water and is primarily associated with Cold transformation. Sudden invasion by Cold pathogenic factors damages the Kidney first; as Water-Dampness accumulates in the Lower Jiao, the feet are affected first. After food enters the Stomach, Spleen Dampness flows downward, pouring into the feet and failing to dissipate. Wind, Cold, Summerheat, and Dampness can all cause this disease, but Damp-Heat is most common. Initially, there is aversion to cold and fever, resembling Taiyang Disease (*Taiyang Bing*, a syndrome caused by pathogenic factors invading the Taiyang channel). However, the shins and calves appear red, shiny, swollen, and painful, with soreness and pain in the legs and knees, scanty and difficult urination, aversion to the smell of food, and even upward rushing of pathogens causing heart pain and vomiting of green fluid. Do not mistakenly treat it as a swelling or toxin. If swollen, it is named Wet Hong Kong Foot, suitable for treatment with methods that promote diuresis to drain dampness and clear heat. If painful but not swollen, it is named Dry Hong Kong Foot, suitable for nourishing blood and moistening dryness. In the early stage, it is appropriate to use Baidu San (Decoction for Defeating Toxins) to induce sweating and expel pathogens (the main formula for Plague diseases); in winter, use Wuji San (Five Accumulations Powder) (see Middle Cold section), followed by the main formula of this school; subsequently, take Danggui Nian Tong Tang (Angelica Decoction for Relieving Pain) (see Body Pain section). A floating pulse indicates Wind, a tight pulse indicates Cold, a soggy pulse indicates Dampness, and a rapid pulse indicates Heat. If the pulse fluctuates suddenly in size, accompanied by delirious speech and inability to eat, the condition is critical.
Main Formula: Cangzhu (Atractylodis Rhizoma), Qianghuo (Notopterygii Rhizoma et Radix), Danggui (Angelicae Sinensis Radix) (each 1.5 qian), Fangfeng (Saposhnikoviae Radix), Fangji (Stephaniae Tetrandrae Radix), Zexie (Alismatis Rhizoma), Jiuhuangqin (Scutellariae Radix fried with wine), Yiren (Coicis Semen), Niuxi (Achyranthis Bidentatae Radix) (each 1 qian).
Add Shengjiang (Zingiberis Rhizoma Recens) and Zao (Jujubae Fructus), decoct in water and take orally.
For muscle spasms, add Mugua (Chaenomelis Fructus) and Lingxian (Syneilesis Herba); for constipation, add Zhishi (Aurantii Fructus Immaturus) and Dahuang (Rhei Radix et Rhizoma); for dysuria, add Zhuling (Polyporus), Yinchen (Artemisiae Scopariae Herba), or Dafupi (Arecae Pericarpium), Binglang (Arecae Semen), Jingjie (Schizonepetae Herba), Wuyao (Linderae Radix), Chenpi (Citri Reticulatae Pericarpium), Zisu (Perillae Folium), Zhike (Aurantii Fructus), Sangbai (Mori Cortex), Mugua (Chaenomelis Fructus), decoct with Shengjiang (Zingiberis Rhizoma Recens).
Binglang Tang (Betel Nut Decoction): Treats all types of Hong Kong Foot, unblocking stagnation and benefiting the chest and diaphragm.
Xiangfu (Cyperi Rhizoma), Chenpi (Citri Reticulatae Pericarpium), Zisu (Perillae Folium), Binglang (Arecae Semen), Wujia Pi (Acanthopanacis Cortex), Mugua (Chaenomelis Fructus), Zhigancao (Glycyrrhizae Radix et Rhizoma preparata) (each 7 fen). Add one slice of Shengjiang (Zingiberis Rhizoma Recens), decoct in water and take orally.
*Danliao Fang*: Treats Hong Kong Foot where pathogens enter the abdomen and rush to the heart, causing severe pain, abdominal swelling and fullness, and obstruction of both bowel and bladder movements.
Suye (Perillae Folium), Suzi (Perillae Fructus), Mugua (Chaenomelis Fructus) (each 7 fen), Qianghuo (Notopterygii Rhizoma et Radix), Baishao Yao (Paeoniae Radix Alba), Binglang (Arecae Semen), Zhike (Aurantii Fructus) (each 5 fen), Qingpi (Citri Reticulatae Pericarpium), Gancao (Glycyrrhizae Radix et Rhizoma) (each 3 fen). Decoct with Shengjiang (Zingiberis Rhizoma Recens), and mix with ground Chenxiang (Aquilariae Lignum Resinatum) and Muxiang (Vladimiriae Radix) (each 5 fen) before taking.
Jiming San (Crowing Cock Powder): The most effective first-line remedy for men and women suffering from Wind-Dampness Hong Kong Foot, where pathogens flow into the meridians, causing extreme swelling and pain.
Binglang (Arecae Semen) (7 pieces), Chenpi (Citri Reticulatae Pericarpium), Mugua (Chaenomelis Fructus) (each 1 liang), Wuzhuyu (Evodiae Fructus) (2 qian), Shengjiang (Zingiberis Rhizoma Recens), Jiegeng (Platycodonis Radix) (each 5 qian), Zisu (Perillae Folium) (3 qian).
Grind the above ingredients into a coarse powder, divide into four doses. Soak overnight in three zhong of water, decoct until half a zhong remains; for the dregs, add two zhong of water and decoct until one zhong remains. Place the medicine at the bedside, and take in divided doses while cold during the fifth watch (around 3-5 AM). In winter, take slightly warm, followed by eating some biscuit-like food to settle the stomach; if black stool is passed at dawn, the patient recovers.
Jiawei Ermiao Wan (Modified Two Marvels Pills): For damp-Heat affecting both feet, causing burning pain and swelling that gradually spreads to the groin and abdomen, or for recurrent Hong Kong Foot.
Cangzhu (Atractylodis Rhizoma) (4 liang), Huangbai (Phellodendri Cortex fried with wine) (2 liang), Niuxi (Achyranthis Bidentatae Radix), Fangji (Stephaniae Tetrandrae Radix), Danggui (Angelicae Sinensis Radix) (all soaked in wine), Bibai (Dioscoreae Hypoglaucae Rhizoma) (from Sichuan), Guiban (Testudinis Carapax et Plastrum roasted with酥 and fried with wine), Shudi (Rehmanniae Radix Preparata pounded) (each 1 liang).
Grind into powder, make pills with wine paste the size of tung seeds. Take 100 pills on an empty stomach with salted wine.
Danggui Nian Tong Tang (Angelica Decoction for Relieving Pain): Most effective for Damp-Heat Hong Kong Foot, as well as joint swelling and pain, and severe pain throughout the body (see Body Pain section).
Simple Formula: Definitely effective for Hong Kong Foot.
Cangzhu (Atractylodis Rhizoma processed), Huangbai (Phellodendri Cortex processed) (each 4 qian). Decoct in water and take on an empty stomach. Externally, apply hot-warmed salt compresses, or wash/soak with warm urine. Eat more boiled white radish to regulate qi.
Hong Kong Foot Rushing to the Heart: Baijian (Alumen) 3 liang, use Jiangshui (fermented rice water) 1.5 dou, boil several times, and soak the feet. This is highly effective.