涌泉疽（肾经穴位，在足心），生于足心，又名井泉疽，俗名病穿板，又名穿窟天蛇。属
少阴肾经虚损、湿热下注而成。若高突 肿，过候即溃脓者，毒浅易愈；若或麻或痒，黑陷
不痛，二十一日之内不溃脓者，属阴败之证，毒深难救。治宜隔蒜灸之，或用神灯照法，内
服除湿解毒之剂。若虚甚脓迟，则进十全大补汤，溃后与八味地黄汤、补中益气汤等以滋化
源，切不可过用攻伐之剂，致伤脾胃，使元气愈虚，多致不救。
足底生疔，初起如小疮或小泡，根脚坚硬，四围 肿，或疼痛，或麻木，令人憎寒，头
痛发热，或呕吐恶心，烦躁闷乱。此由肥甘过度，不慎房酒，以致邪毒蕴结而成。经曰∶膏
粱之变，足生大疔。此之谓也。凡患此者，多有红丝至脐，须看明，急用针于血丝尽处挑破
之，使出恶血；亦用隔蒜灸法，痛则灸至不痛，不痛者灸至痛，若灸而不痛，针疔四边，皆
令血出，以夺命丹一粒，入疮头孔内，以膏药盖之，内服解毒之剂，或荆防败毒散、活命饮
，兼托里补药。若头突如水晶样者，即用刀点之，盖以升膏。又或初起黄泡，止有硬块，不
甚痛赤者，为水疔，亦宜当头刺破，以升膏盖之。凡脚底生疔，若有老皮之处，宜去之，否
则其头难出。
夫漏蹄疯之发也，其源有二∶一由醇酒炙 ，肝肾阴亏，络道空虚，湿热下注而生
；一由于贫苦乡人，劳力伤营，气血失和而发。其疡起于足底皮浓处，初则皮坚肿突，隐隐
作痛，时痛时止，或一月或二月后渐渐穿破，但有滓水而无脓血，久则皮烂，其口如钱大，
其肉凹进，色如鸡肝，艰于任地。用珍珠散掺之，以白玉膏盖贴，服萆 渗湿汤，兼服知柏
八味丸。须饮食安养，必拖延岁月，方可收功。其或成脓者，为驴眼疽，属阴亏血热，湿热
注络不化，较漏蹄稍为易于收敛。然亦要加谨调治，外以升膏盖贴，服药如前。
涌泉疽（肾经穴位，位于足心），发生在足心部位，又名井泉疽，俗称病穿板，又被称为穿窟天蛇。此病属于少阴肾经虚损、湿热下注所致。如果患处高突肿胀，过了适当时机即溃破流脓的，说明毒邪较浅，容易治愈；如果出现麻木或瘙痒，疮色黑陷且不疼痛，二十一天内不溃破流脓的，属于阴气败坏的证候，毒邪深重，难以救治。治疗宜采用隔蒜灸法，或使用神灯照法，内服除湿解毒的药物。如果正气极虚、脓液生成迟缓，则服用十全大补汤；溃破后给予八味地黄汤、补中益气汤等以滋养化源，切不可过度使用攻伐药物，以免损伤脾胃，导致元气更加虚弱，大多会导致无法救治。
足底生疔，初起时像小疮或小水泡，根部坚硬，四周红肿，或者疼痛，或者麻木，使人恶寒，头痛发热，或者呕吐恶心，烦躁闷乱。这是由于过食肥甘厚味，不慎节制房事和饮酒，导致邪毒蕴结而成。医经说：“膏粱之变，足生大疔。”说的就是这种情况。凡是患此病的人，多有红丝延伸至肚脐，必须看清楚，急需用针在红丝尽头处挑破，放出恶血；也使用隔蒜灸法，痛的就灸到不痛为止，不痛的就灸到产生痛感，如果灸了仍不痛，就在疔疮四边针刺，都令其出血，取夺命丹一粒，放入疮头孔内，用膏药覆盖，内服解毒药物，如荆防败毒散、仙方活命饮，兼用托里补益药物。如果疮头突起如水晶体样，就立即用刀点刺，盖上升膏。又或者初起为黄泡，仅有硬块，不太疼痛发红的，称为水疔，也应当当头刺破，用升膏覆盖。凡是脚底生疔，如果有老皮的地方，应当去除，否则疮头难以发出。
漏蹄疯发作，其病因有两个：一是由于醇酒炙烤之物，导致肝肾阴亏，络道空虚，湿热下注而生；二是由于贫苦乡人，劳力伤及营血，气血失和而发病。其疮疡起于足底皮肤厚实之处，初起时皮肤坚硬肿胀突起，隐隐作痛，时痛时止，或一个月或两个月后渐渐穿破，只有浑浊液体而无脓血，久了则皮肤腐烂，疮口如铜钱大小，肌肉凹陷，颜色如鸡肝，难以承受站立负重。用珍珠散撒敷，以白玉膏盖贴，服用萆薢渗湿汤，兼服知柏八味丸。需要饮食安养，必定拖延岁月，才能收效。其中若成脓的，称为驴眼疽，属于阴亏血热，湿热注络不化，比漏蹄疯稍为容易收敛。但也需谨慎调治，外用升膏盖贴，服药同前。
Yongquan Ju (abscess at the Yongquan acupoint, located in the center of the sole), occurs on the sole of the foot. It is also known as Jingquan Ju (Well Spring Abscess), commonly called Bingchuan Ban (Disease Penetrating Board), and alternatively referred to as Chuanku Tianshe (Piercing Cave Heavenly Snake). This condition belongs to deficiency and damage of the Shaoyin Kidney Meridian, with damp-heat sinking downward. If the lesion is elevated and swollen, and suppurates after a proper duration, the pathogenic toxin is shallow and it is easy to heal; if there is numbness or itching, the color is black and depressed without pain, and no suppuration occurs within twenty-one days, it belongs to a syndrome of Yin collapse, where the toxin is deep and difficult to save. Treatment should involve moxibustion with garlic partition, or the method of illuminating with the Divine Lamp, combined with internal administration of agents that drain dampness and detoxify. If deficiency is severe and pus formation is delayed, Shiquan Dabu Tang (Ten Significant Tonifying Decoction) should be administered; after ulceration, Bawei Dihuang Wan (Eight-Ingredient Rehmannia Pill) or Buzhong Yiqi Tang (Tonify the Middle and Augment the Qi Decoction) should be given to nourish the source of transformation. One must absolutely avoid overusing attacking and reducing agents, which would damage the Spleen and Stomach, causing the Yuan Qi (Original Qi) to become even more deficient, often leading to untreatable conditions.
Ding (carbuncle/furuncle) on the sole of the foot, at the initial stage, resembles a small sore or blister, with a hard root, surrounded by swelling, accompanied by either pain or numbness, causing aversion to cold, headache, fever, vomiting, nausea, restlessness, and confusion. This arises from excessive consumption of rich and sweet foods, and failure to exercise caution regarding sexual activity and alcohol, resulting in the accumulation and knotting of pathogenic toxins. The Classics state: "Changes from rich and fatty foods lead to large Ding on the feet." This refers to such cases. For those suffering from this, red threads often extend to the umbilicus; one must observe clearly and urgently use a needle to pierce the end of the red thread to release evil blood. Moxibustion with garlic partition is also used: for painful areas, moxa until pain ceases; for non-painful areas, moxa until pain arises. If moxibustion does not induce pain, prick the four sides of the Ding to allow bleeding. Place one pill of Duoming Dan (Life-Snatching Pill) into the pore of the sore's head, cover with an ointment plaster, and internally administer detoxifying agents such as Jingfang Baidu San (Schizonepeta and Saposhnikovia Decoction to Overcome Toxin) or Xianfang Huoming Yin (Immortal Formula Life-Saving Decoction), combined with interior-supporting and tonifying medicines. If the head protrudes like crystal, immediately puncture it with a knife and cover with Sheng Gao (Ascension Ointment). Alternatively, if initially presenting as a yellow blister with only a hard mass and little pain or redness, it is called Shui Ding (Water Carbuncle); it should also be pierced at the head and covered with Sheng Gao. Whenever a Ding appears on the sole of the foot, any calloused skin should be removed; otherwise, the head of the sore will be difficult to emerge.
The onset of Louti Feng (Leaking Hoof Madness) has two sources: one stems from rich wines and roasted meats, leading to deficiency of Liver and Kidney Yin, emptiness of the collaterals, and generation due to damp-heat sinking downward; the other arises among poor villagers who suffer injury to Ying Blood through labor, causing disharmony of Qi and Blood. The lesion begins in the thick-skinned area of the sole. Initially, the skin is hard, swollen, and protruding, with vague pain that comes and goes. After one or two months, it gradually breaks through, discharging turbid fluid but no pus or blood. Over time, the skin rots, the opening becomes the size of a coin, the flesh sinks inward, and the color resembles chicken liver, making weight-bearing difficult. Apply Zhenzhu San (Pearl Powder), cover with Baiyu Gao (White Jade Ointment), take Bixie Shen Shi Tang (Dioscorea Hypoglauca Decoction to Drain Dampness), and concurrently take Zhibai Bawei Wan (Anemarrhena, Phellodendron, and Eight-Ingredient Rehmannia Pill). Dietary care and rest are required; it will inevitably drag on for years before healing can be achieved. Among these, if suppuration occurs, it is called Lvyan Ju (Donkey Eye Abscess), belonging to Yin deficiency with Blood heat, where damp-heat enters the collaterals and fails to transform. It is slightly easier to converge than Louti Feng. However, careful treatment is still necessary: externally apply Sheng Gao, and internally administer the same medications as before.