凡有人久患香港脚，不自知别。于后因他病发动，疗之得瘥。后直患呕吐，而复脚弱。余
为诊之，乃告为香港脚。病者曰∶“我平生不患脚肿，何因名为香港脚？”不肯服汤。余医以为初发，
狐疑之间，不过一旬而死。故香港脚不得拘定以肿为候。有肿者，亦有不肿者。其以小腹顽痹
不仁者，脚多不肿。小腹顽后不过三五日，即令人呕吐者，名香港脚入心，如此者，死在旦夕。
凡患香港脚到心难治，以其肾水克心火故也。
病源，此繇风湿毒瓦斯搏于肾经。肾主水，今为邪所搏，则肾气不能宣通，水液不传于小
肠，致水气拥溢腑脏，浸渍皮肤，故肿满也。
千金翼温肾汤 主腰脊膝脚浮肿不遂方。
茯苓 干姜 泽泻（各二两） 桂心（三两）
上四味切，以水六升，煮取二升，分为三服。
又疗香港脚初发，从足起至膝，胫肿骨疼者方。
乌牛尿一服一升，日二服，肿消止。羸瘦者二分尿、一分牛乳，合煮，乳结乃服之。
又方 生猪肝一具细切，以淡蒜齑食之令尽。分再食之。
崔氏疗香港脚遍身肿方
大豆（二大升） 桑白皮（一握切） 槟榔（十四枚） 茯苓（二两）
上四味，和老酒二升煎服。
疗香港脚满小便少者方
槟榔（四升） 大豆（三升） 桑白（一升）
水煎。
徐玉枳实散
宜春秋服，消肿利小便，兼补疗风虚冷胀不能食方。
枳实（半斤，炙） 桂心（一尺） 茯苓 白术（各五两）
上四味为散，酒服方寸匕，日三服。
手脚酸痛兼微肿方
乌麻（五升，微熬，研碎）
上一味，以酒一升，渍一宿，随多少饮之。
唐侍中疗苦香港脚攻心 此方正散肿气极验。
槟榔（七枚） 生姜（二两） 橘皮 吴萸 紫苏 木瓜（各一两）
水三升，煎服。
香港脚上气入腹肿方
野椒根一升，酒二升，投安瓶中，泥头溏，火烧得一沸，然后温服。
常山甘草汤方
常山（三两） 甘草（一两）
若寒热，日三服。
寒甚阴伤者，肾气衰微者。
鹿茸 淮山药 红枣（各三两） 地黄 黄 茯苓 丹皮（各二两） 川附（半斤） 泽泻（一两）
水煎服。
千金风引汤
疗两脚疼痹肿，或不仁拘急，屈不得行痈肿方。
麻黄（二两，去节） 吴萸 秦艽 桂心 人参 细辛 干姜 防己 川芎 甘草 附子（各一
两） 石膏（二两） 杏仁（六十枚） 白术（三两） 茯苓（二两） 生蒜 桑枝（各一斤） 凤仙（二两）
上诸味杵末，用麻油五斤，将药浸入油内，春五夏三，秋七冬十。候日数已足，入洁净
大锅内，慢火熬至药枯浮起为度。住火片时，用布袋滤去渣，将油称准。每油一斤，封定黄
丹六两，用桃柳枝不时搅之，以黑如漆亮如镜为度。滴入水内成珠，用布摊贴。（随时贴此
膏应用麝香一分敷在患处）
风引汤（方见《金匮》）
鸡鸣散（方见《时方》）
治香港脚第一品药，不问男女可服。如感风湿流注，脚痛不可忍，筋脉肿者，并宜服之。加
鹿茸者，其效如神。
Whenever a person has suffered from Hongxiangjiao (a disease characterized by swelling, heaviness, pain, or numbness in the lower legs and feet) for a long time without realizing it differs from other conditions, later it may be triggered by another illness. After treatment leads to recovery, direct vomiting occurs, accompanied by weakness in both legs. Upon pulse diagnosis, I informed him that this was Hongxiangjiao. The patient said, "I have never had swollen feet in my life; why is it called Hongxiangjiao?" He refused to take the decoction. I considered it an initial onset; within his hesitation and doubt, he died in less than ten days. Therefore, Hongxiangjiao cannot be rigidly defined by the presence of swelling. There are cases with swelling and cases without. In those presenting with hardness, numbness, and insensitivity in the lower abdomen, the feet are mostly not swollen. If lower abdominal numbness is followed by vomiting within three to five days, it is named "Hongxiangjiao entering the Heart." Such cases face imminent death. Any case of Hongxiangjiao affecting the Heart is difficult to treat because Kidney Water overcomes Heart Fire.
The pathology originates from Wind-Dampness-Toxic Qi clashing with the Kidney Meridian. The Kidney governs Water; now being constrained by pathogenic factors, Kidney Qi fails to circulate freely. Fluids do not transmit to the Small Intestine, causing Water Qi to stagnate and overflow into the Zang-Fu organs, soaking the skin, thus resulting in swelling and fullness.
Wen Shen Tang (Warm the Kidney Decoction) from Qianjin Yi Fang: Mainly treats swelling and immobility of the waist, spine, knees, and feet.
Fuling (Poria), Ganjiang (Dried Ginger), Zexie (Alisma) (each 2 liang), Guixin (Cinnamon Twig) (3 liang).
Cut the above four herbs, boil in 6 sheng of water until reduced to 2 sheng, divide into three doses.
Another prescription for early-stage Hongxiangjiao starting from the foot up to the knee, with calf swelling and bone pain:
One dose of black ox urine (1 sheng), taken twice daily. Stop when swelling subsides. For emaciated patients, mix two parts urine with one part cow's milk, boil together until the milk coagulates, then consume.
Another method: One raw pig liver, finely chopped, eaten with mild garlic paste until finished. Divide into two meals.
Cui Shi's Prescription for Generalized Swelling in Hongxiangjiao:
Da Dou (Soybean) (2 large sheng), Sangbaipi (Morus Alba Bark) (one handful, cut), Binglang (Areca Seed) (14 pieces), Fuling (Poria) (2 liang).
Boil the above four herbs with 2 sheng of aged wine and drink.
Prescription for Hongxiangjiao with abdominal fullness and scanty urination:
Binglang (Areca Seed) (4 sheng), Da Dou (Soybean) (3 sheng), Sangbai (Morus Alba Bark) (1 sheng).
Decoct in water.
Xu Yu's Zhishi San (Immature Bitter Orange Powder):
Suitable for spring and autumn consumption; reduces swelling, promotes urination, and supplements/treats wind-deficiency cold distension and anorexia.
Zhishi (Immature Bitter Orange) (0.5 jin, roasted), Guixin (Cinnamon Twig) (1 chi), Fuling (Poria), Baizhu (Atractylodes Macrocephala Rhizome) (each 5 liang).
Grind the above four herbs into powder. Take one cun bi (measure) with wine, three times daily.
Prescription for soreness and pain in hands and feet with slight swelling:
Wuma (Black Sesame Seed) (5 sheng, lightly fried and crushed).
Soak the single herb in 1 sheng of wine overnight. Drink as needed.
Tang Shizhong's Prescription for Severe Hongxiangjiao Attacking the Heart: This formula effectively dissipates swelling qi. Highly effective.
Binglang (Areca Seed) (7 pieces), Shengjiang (Fresh Ginger) (2 liang), Jupi (Citrus Reticulata Peel), Wuyu (Evodia Fruit), Zisu (Perilla Leaf), Mugua (Chaenomeles Fruit) (each 1 liang).
Decoct in 3 sheng of water and drink.
Prescription for Hongxiangjiao Qi Rushing into the Abdomen Causing Swelling:
Yejiaogen (Wild Pepper Root) (1 sheng), Wine (2 sheng). Put in an An bottle, seal the neck with mud, heat until boiling once, then drink warm.
Changshan Gancao Tang (Dichroa Root and Licorice Decoction):
Changshan (Dichroa Root) (3 liang), Gancao (Licorice Root) (1 liang).
If there is alternating chills and fever, take three times daily.
For severe cold damaging Yin and declining Kidney Qi:
Lurong (Deer Antler Glue), Huai Shanyao (Chinese Yam), Hongzao (Jujube) (each 3 liang), Dihuang (Rehmannia Root), Huangqi (Astragalus Root), Fuling (Poria), Danpi (Moutan Cortex) (each 2 liang), Chuan Fu (Aconite Lateral Root) (0.5 jin), Zexie (Alisma) (1 liang).
Decoct in water and drink.
Qianjin Fengyin Tang (Thousand Golden Wind-Attracting Decoction):
Treats painful obstruction and swelling in both legs, or insensitivity and spasms preventing walking, and carbuncle swelling.
Mahuang (Ephedra Stem) (2 liang, remove joints), Wuyu (Evodia Fruit), Qin Jiao (Gentiana Macrophylla Root), Guixin (Cinnamon Twig), Renshen (Ginseng Root), Xixin (Asarum Root), Ganjiang (Dried Ginger), Fangji (Stephania Root), Chuanxiong (Ligusticum Chuanxiong Rhizome), Gancao (Licorice Root), Fuzi (Aconite Lateral Root) (each 1 liang), Shigao (Gypsum Fibrosum) (2 liang), Xingren (Apricot Seed) (60 pieces), Baizhu (Atractylodes Macrocephala Rhizome) (3 liang), Fuling (Poria) (2 liang), Sheng Suan (Raw Garlic), Sangzhi (Mulberry Twig) (each 1 jin), Fengxian (Impatiens Balsamina) (2 liang).
Pound all herbs into powder. Soak in 5 jin of sesame oil. Spring: 5 days; Summer: 3 days; Autumn: 7 days; Winter: 10 days. When time is sufficient, place in a clean large pot and simmer slowly until herbs are dry and float. Let sit off heat briefly, filter dregs through a cloth bag, and weigh the oil accurately. For every 1 jin of oil, add 6 liang of sealed Huangdan (Lead Monoxide). Stir constantly with peach or willow branches until black as lacquer and bright as a mirror. Test by dropping into water; if it forms beads, spread on cloth for application. (Apply 1 fen of Muxiang (Musk) to the affected area when using this plaster.)
Fengyin Tang (See Jin Gui Yao Lue).
Jiming San (Chicken Crowing Scattering Powder) (See Shi Fang Ge Kuo).
This is the premier remedy for Hongxiangjiao, suitable for both men and women. If suffering from Wind-Dampness flowing into collaterals, unbearable foot pain, and swollen meridians, this should be taken. Adding Lurong (Deer Antler Glue) yields miraculous effects.