《心法》附录曰∶香港脚有湿热，有食积流注，有风湿，有寒湿。
胜湿以仙术、白术、防己、川芎为主，或六物附子汤，或当归拈痛汤。
香港脚气郁甚者，舟车丸、除湿丹；有饮者，东垣开结导饮丸。
香港脚解表用麻黄左经汤等药，随经选用；有兼痰气寒湿者，五积散加木瓜。
若双解，以大黄左经汤、东垣羌活导滞汤。
若理血，以八味丸或四物加羌活、天麻，又或四物加黄柏、南星，或健步丸。
若疏风养血，用独活寄生汤最效。
春夏气溢肿而痛者，用香苏散加五加皮、木瓜、槟榔、川楝子。
热而红肿者，败毒散加木瓜、苍术。
秋冬以后，用五积散加木瓜、牛膝、槟榔、吴茱萸。
丹溪曰∶有痰，有血热。血热，四物加黄柏、知母、牛膝之类；有痰唾者，五积散加木
瓜。
四物汤（方见补损门。）
五积散（方见中寒门。）
舟车丸、除湿丹（俱见湿类。）
开结导饮丸（方见痰涎门。）
治脚转筋，疼痛挛急，用松节二两，锉细，乳香一钱，以银石器内，慢火略炒焦存性，
研细，每服一钱至二钱，木瓜酒调下。
治香港脚筋骨疼痛，用金银花为末，每服二钱，热酒调下，或锉碎，同木瓜、白芍药、
官桂、当归、甘草，酒水各半钟煎，去滓，空心热服。
The Appendix of *Xinfa* states: Hong Kong Jiao (Gouty Arthritis / Foot Qi) includes patterns of Damp-Heat, Food Stagnation with Flowing Accumulation, Wind-Dampness, and Cold-Dampness.
To overcome dampness, the main herbs are Cangzhu (Atractylodis Rhizoma), Baizhu (Atractylodis Macrocephalae Rhizoma), Fangji (Stephaniae Tetrandrae Radix), and Chuanxiong (Chuanxiong Rhizoma). Alternatively, Liuwu Fuzi Tang (Six-Ingredient Decoction with Aconite Root) or Danggui Niantong Tang (Angelica Sinensis Decoction for Relieving Pain) may be used.
For severe stagnation in Hong Kong Jiao Qi, Zhouche Wan (Boat Cart Pill) or Chushi Dan (Dampness-Removing Pellet) are indicated; if there is fluid retention, Dongyuan's Kaijie Daoyin Wan (Kaijie Guiding-Out Fluid Retention Pill) is used.
When treating Hong Kong Jiao requiring exterior resolution, drugs such as Mahuang Zuojing Tang (Ephedra Left Meridian Decoction) are selected according to the affected meridian; if complicated by Phlegm-Qi and Cold-Dampness, Wuji San (Five Accumulations Powder) with Mugua (Chaenomeles Fruit) is added.
For simultaneous release of exterior and interior pathogens, Dahuang Zuojing Tang (Rhubarb Left Meridian Decoction) or Dongyuan's Qianghuo Daozhi Tang (Notopterygium Decoction for Directing Out Stagnation) are used.
For regulating blood, Bawei Wan (Eight-Ingredient Pill) or Siwu Tang (Four Substances Decoction) plus Qianghuo (Notopterygii Rhizoma et Radix) and Tianma (Gastrodiae Rhizoma) are used; alternatively, Siwu Tang plus Huangbai (Phellodendri Cortex) and Nanting (Arisaematis Rhizoma Praeparatum), or Jianbu Wan (Strong-Legs Pill) may be employed.
For dispersing wind and nourishing blood, Du Huo Ji Sheng Tang (Radix Angelicae Pubescentis Decoction for Expelling Wind-Dampness and Nourishing Blood and Liver-Kidney) is most effective.
In spring and summer, when Qi overflows causing swelling and pain, Xiangsu San (Fragrant Perilla Powder) plus Wujia Pi (Acanthopanacis Cortex), Mugua, Binglang (Arecae Semen), and Chuanlianzi (Evodiae Fructus) are used.
For heat with redness and swelling, Baidu San (Defeat Toxin Powder) plus Mugua and Cangzhu are used.
After autumn and winter, Wuji San plus Mugua, Niuxi (Achyranthis Bidentatae Radix), Binglang, and Wuzhuyu (Evodiae Fructus) are used.
Danxi stated: There are patterns of Phlegm and Blood Heat. For Blood Heat, Siwu Tang plus Huangbai, Zhimu (Anemarrhenae Rhizoma), and Niuxi are used; for those with Phlegm saliva, Wuji San plus Mugua is used.
Siwu Tang (Formula seen in the Tonifying Deficiency Section.)
Wuji San (Formula seen in the Middle Cold Section.)
Zhouche Wan, Chushi Dan (Both seen in the Dampness Category.)
Kaijie Daoyin Wan (Formula seen in the Phlegm-Saliva Section.)
To treat foot convulsions (Charley Horse), pain, and spasmodic tightness, use Songjie (Pinus Massoniana Node) two liang, finely chopped; Rushxiang (Olibanum) one qian. In a silver or ceramic vessel, stir-fry slowly over low heat until charred but retaining its nature. Grind into fine powder. Take one to two qian per dose, administered with Mugua wine.
To treat Hong Kong Jiao with bone and tendon pain, use Jinyinhua (Lonicerae Japonicae Flos) ground into powder. Take two qian per dose, mixed with hot wine. Alternatively, chop the herbs finely and decoct together with Mugua, Baishao Yao (Paeoniae Radix Alba), Guigui (Cinnamomi Ramulus), Danggui (Angelicae Sinensis Radix), and Gancao (Glycyrrhizae Radix et Rhizoma) in half water and half wine. Strain the dregs and take warm on an empty stomach.
(Attached: Plum-Pit Qi, Accumulations and Masses, Zheng-Jia, Pi-Kuai)