下元虚损，又久立湿地，致寒湿之气，客于经脉，则双足肿痛，行步少力。又暑月冷水濯足，亦成干香港脚，
发则连足心、腿 ，肿痛如火烙，或发热、恶寒。治法灸涌泉穴，则永去病根，若不灸，多服金液丹亦好。平
常药临时有效，不能全除。其不能行步者，灸关元五十壮。大忌凉药，泄伤肾气，变为中满、腹胀而死。久患
香港脚人，湿气上攻，连两胁、腰腹、肩臂拘挛疼痛，乃肾经湿盛也。服宣风丸五十粒，微下而愈。然审果有是
证者可服，若虚人断不可轻用。（香港脚壅疾，言邪气壅滞于下，有如痹证之闭而不行。但此证发则上冲心胸，
呕吐、烦闷，甚为危险，即《内经》所谓厥逆是也。轻者，疏通经脉，解散寒湿，调其阴阳，和其血气，亦易
于治。如苏梗、腹皮、木瓜、槟榔、苍术、独活等药，皆可用也。其甚者憎寒、壮热、气逆、呕吐、筋急入
腹，闷乱欲绝，此邪冲入腹，危险更甚，非重用温化不可，
如茱萸、姜附等药，宜皆用之。至如剥削过度，脉微欲绝，变成虚寒，往往不起，不可谓壅疾而不利于补也。）
治验
一人患香港脚，两 骨连腰，日夜痛不可忍，为灸涌泉穴五十壮，服金液丹五日全愈。（此证有似痛痹。）
一女人患香港脚，忽手足遍身拘挛疼痛，六脉沉大，乃胃气盛也，服宣风丸三十粒，泄去而愈。（此证须细
审的确，方可用。）
下焦元气虚损，加上长期站立在潮湿之地，导致寒湿之气侵入经脉，就会出现双脚肿胀疼痛，行走无力。又在暑天用冷水洗脚，也会形成干性香港脚（即干脚气），发作时连足心、小腿都肿痛如火烧烙烫，或者伴有发热、怕冷。治疗方法是灸涌泉穴，就能永远去除病根；如果不灸，多服用金液丹也好。平时的药物只在临时有效，不能彻底除根。对于不能行走的患者，灸关元穴五十壮。大忌使用凉药，以免泄伤肾气，变成中满、腹胀而死。长期患香港脚的人，湿气上攻，牵连两胁、腰腹、肩臂拘挛疼痛，这是肾经湿气盛的表现。服用宣风丸五十粒，轻微腹泻后痊愈。然而确实有这些证候的人可以服用，如果是虚弱之人绝对不可轻易使用。（香港脚壅疾，说的是邪气壅滞于下部，有如痹证的闭阻不通。但这种病证发作时会向上冲犯心胸，出现呕吐、烦闷，非常危险，就是《内经》所说的厥逆。轻症的，疏通经脉，解散寒湿，调和阴阳，调和血气，也容易治疗。如苏梗、腹皮、木瓜、槟榔、苍术、独活等药，都可以使用。严重的憎寒、高热、气逆、呕吐、筋急入腹，烦乱欲绝，这是邪气冲入腹部，危险更甚，非重用温化不可，如茱萸、姜附等药，都应该使用。至于如剥削过度，脉微欲绝，变成虚寒，往往起不来，不能说壅疾就不利于补益。）
治验
一人患香港脚，两踝骨连腰，日夜痛不可忍，为他灸涌泉穴五十壮，服用金液丹五日全愈。（此证有似痛痹。）
一女人患香港脚，忽然手足遍身拘挛疼痛，六脉沉大，这是胃气盛的表现，服用宣风丸三十粒，泄去后痊愈。（此证须仔细审察确凿，方可使用。）
Deficiency and damage of the lower yuan (lower origin), combined with prolonged standing in damp places, causes cold-dampness to invade the meridians, resulting in swelling and pain in both feet and weakness in walking. Washing feet with cold water during summer months can also lead to dry Hongxiangjiao (dry gout/foot qi). When it attacks, it causes swelling and pain from the soles of the feet up to the calves, feeling like burning or scalding, accompanied by fever and aversion to cold. The treatment method is to moxa Yongquan (KI 1) acupoint, which will permanently eliminate the root of the disease; if not moxaed, taking Jin Ye Dan (Golden Liquid Pill) in large amounts is also good. Ordinary medicines are only effective temporarily and cannot completely eradicate the disease. For those unable to walk, moxa Guanyuan (CV 4) for fifty moxibustion cones. It is strictly forbidden to use cooling herbs, as they drain and injure Kidney Qi, leading to abdominal fullness and distension, which can result in death. In chronic cases of Hongxiangjiao, dampness attacks upward, causing spasmodic pain in the hypochondrium, waist, abdomen, shoulders, and arms, indicating excessive dampness in the Kidney Meridian. Taking Xuan Feng Wan (Wind-Dispersing Pill) fifty pills results in mild purgation and recovery. However, this should only be taken if the syndrome is confirmed; it must absolutely not be used lightly in deficient persons. (Hongxiangjiao Yongji refers to pathogenic factors stagnating in the lower body, similar to the obstruction in Bi syndrome. However, when this condition attacks, it rushes upward to the chest and heart, causing vomiting and restlessness, which is very dangerous, known as Jue Ni (Rebellious Counterflow) in the *Nei Jing*. Mild cases can be treated by unblocking the meridians, dispersing cold-dampness, harmonizing Yin and Yang, and regulating Qi and Blood, making them easy to treat. Herbs such as Perillae Caulis (Sugeng), Citrus Peel (Fupi), Chaenomeles Fruit (Mugua), Areca Seed (Binglang), Atractylodes Rhizome (Cangzhu), and Angelica Pubescens Root (Duhuo) can all be used. Severe cases involve aversion to cold, high fever, rebellious Qi, vomiting, tendon stiffness entering the abdomen, and extreme restlessness, indicating pathogenic factors rushing into the abdomen, which is even more dangerous and requires heavy use of warming and transforming herbs, such as Cornus Fruit (Zhuyu) and Ginger-Prepared Aconite (Jiang Fu). If over-exploitation leads to a faint pulse on the verge of disappearance, turning into deficiency-cold, the patient often does not recover; one cannot say that Yongji (stagnant disease) precludes tonification.)
Case Records:
One person suffered from Hongxiangjiao, with pain in both ankles radiating to the waist, unbearable day and night. He was moxaed at Yongquan (KI 1) for fifty cones and took Jin Ye Dan (Golden Liquid Pill) for five days, achieving complete recovery. (This condition resembles Painful Bi syndrome.)
A woman suffered from Hongxiangjiao, suddenly experiencing spasmodic pain throughout her limbs and body. Her six pulses were deep and large, indicating excess Stomach Qi. She took thirty pills of Xuan Feng Wan (Wind-Dispersing Pill), achieved purgation, and recovered. (This condition requires careful confirmation before use.)