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The Kidney belongs to Water and primarily governs the waist and lower limbs (feet and knees). If Kidney Qi is deficient, it may be attacked by Wind-Dampness and toxic pathogens, leading to insufficient Kidney Qi that fails to disseminate and circulate body fluids.

Binglang San (Catechu Powder), sourced from *Shenghui Fang* (Prescriptions of the Holy Grace), treats Water-Qi disease with symptoms such as edema of the feet and knees, difficulty in urination and defecation, rebellious Qi, and panting.
Ingredients: Binglang (Arecae Semen, 1 liang), Muxiang (Aucklandiae Radix), Guixin (Cinnamomi Cortex, each 0.5 liang), Zisu Jingye (Perillae Caulis et Folium, 1 liang, cut), Yuliren (Prunus armeniaca seed, soaked in water, skin removed, lightly stir-fried, 1.5 liang).

Yuliren San (Prunus armeniaca Seed Powder), sourced from *Shenghui Fang*, treats Water-Qi disease with symptoms such as edema of the feet and knees, water qi attacking upward to the abdomen, causing fullness and oppression in the heart and hypochondrium, panting, and dysuria.
Ingredients: Yuliren (Prunus armeniaca seed, soaked in water, skin removed, lightly stir-fried), Sangbaipai (Morus alba root bark, crushed, lightly stir-fried), Chifuling (Poria cocos with red wood, skin removed), Zeqi (Euphorbiae humifusa Herba), Hanfangji (Stephaniae Tetrandrae Rhizoma), Zexie (Alismatis Rhizoma, crushed), Gansui (Kansui Radix, baked until slightly yellow), Chenjupi (Citri Reticulatae Pericarpium, soaked in water, white pith removed, dried, each 1 liang). The above are ground into a powder. For each dose, take one pair of pig kidneys, remove the fat membrane, and cook with the powder. It promotes the discharge of large amounts of fluid.

Shanglu San (Phytolaccae Radix Powder), sourced from *Shenghui Fang*, treats Water-Qi disease with symptoms such as edema of the feet and knees, water qi attacking the abdomen and heart, causing oppression and panting, and dysuria.
Ingredients: Shanglu (Phytolaccae Radix, 2 liang), Chixiaodou (Phaseoli Semen Rubrum, 1 he), Mutong (Akebiae Caulis, crushed), Zexie (Alismatis Rhizoma), Chifuling (Poria cocos with red wood), Shengjiang (Zingiberis Rhizoma Recens, 1 fen), Chenjupi (Citri Reticulatae Pericarpium, soaked in water, white pith removed, dried, each 1 liang).

Daji San (Euphorbiae Pekinensis Radix Powder), sourced from *Shenghui Fang*, treats Water-Qi disease with symptoms such as swelling and fullness of the feet and knees extending to the abdomen, panting, irritability, and dysuria.
Ingredients: Daji (Euphorbiae Pekinensis Radix, 1.5 liang, crushed, lightly stir-fried), Mutong (Akebiae Caulis, 0.5 liang, crushed), Danggui (Angelicae Sinensis Radix, 0.5 liang, crushed, lightly stir-fried), Jupi (Citri Reticulatae Pericarpium, 3 fen, soaked in water, white pith removed, dried). Take before going to bed.

For treatment starting with swelling in the feet that gradually moves upward to the abdomen. If water qi enters the abdomen, it is fatal. This method also treats general edema. (Sourced from *Zhouhou Fang*)
Method: Use 1 hu of Adzuki beans, boil until very soft, obtaining 4-5 dou of juice. Soak the area below the knees in the warm juice daily. After several days, the swelling will disappear completely. If water qi has already entered the abdomen, it is difficult to cure.

To treat water disease causing swelling in both feet. (Sourced from *Zhouhou Fang*)
Method: Boil scallion leaves and stems until soft, and soak the affected area. Doing this three to five times a day is optimal.

To treat leg swelling lasting for more than a month.
Method: Decoct Xiangsu Yin (Fragrant Perilla Decoction) in water, adding Binglang (Arecae Semen), Bixie (Dioscorea Hypoglauca Rhizome), and Xiangfuzi (Cyperi Rhizoma).

To treat Lung organ affected by water, transmitted to the Kidney via mother-son generation relationship, causing pathology in Kidney water metabolism. Symptoms include heaviness and coldness in the thighs, cold and heavy sensation in the waist and knees, floating edema in the feet, and abdominal distension. (Sourced from *Huming Fang*)
Ingredients: Xuduan (Dianthus Root), Ganjiang (Zingiberis Rhizoma), Chuanxiong (Ligusticum Chuanxiong Rhizoma, each 0.5 liang), Banxia (Pinelliae Tuber), Jiaomu (Zanthoxyli Semen, each 2 zhu), Wuzhuyu (Evodiae Fructus, 1 fen), Qianniu (Pharbitidis Semen, 3 liang). Except for Qianniu, grind the others into powder, mix with Qianniu, and take with cooked water, a small amount per dose.

After treating Kidney affected by water with purgative medicines to move the water downward, take this formula to tonify. Combine this medicine with Liuhuang Wan (Sulfur Pill), aiming for efficacy. (Sourced from *Huming Fang*)
Ingredients: Bajitian (Morinda Officinalis Root, heart removed), Shanzhuyu (Corni Fructus), Xuduan (Dianthus Root), Huangjupi (Citri Reticulatae Pericarpium), Chuanxiong (Ligusticum Chuanxiong Rhizoma, each 0.5 liang), Tongcao (Tetrapanatis Medulla, 1 fen). Grind into powder. Take 2 qian per dose, decocted in raw water.

To treat chronic water disease where all five Zang organs are affected, causing edema in the face, eyes, limbs, hands, and feet. If external signs do not clearly indicate which Zang organ is affected, and the Spleen is not damaged, this can be used. If the Spleen is damaged, do not take this medicine. (Source missing)
Ingredients: Ganjiang (Zingiberis Rhizoma), Wuzhuyu (Evodiae Fructus), Xuduan (Dianthus Root), Tingli (Descurainiae Semen Lepidii seu Sisymbrii), Jiegeng (Platycodonis Radix), Banxia (Pinelliae Tuber), Guanzi Gui (Cinnamomi Cortex), Qianghuo (Notopterygii Rhizoma et Radix, each 1 fen), Jiaomu (Zanthoxyli Semen, 3 zhu), Binglang (Arecae Semen), Chixiaodou (Phaseoli Semen Rubrum). Boil until soft, consume with the dregs. Adjust dosage the next day based on condition.

To treat Five Zang organs affected by water; after taking purgatives to drain water, take this formula to tonify. (Sourced from *Huming Fang*)
Ingredients: Sangbaipi (Mori Cortex), Ganjiang (Zingiberis Rhizoma), Wuzhuyu (Evodiae Fructus), Bajitian (Morinda Officinalis Root, heart removed and dried), Renshen (Ginseng Radix et Rhizoma), Huixiang (Foeniculi Fructus), Roucongrong (Cynomorii Herba), Chuanxiong (Ligusticum Chuanxiong Rhizoma), Zexie (Alismatis Rhizoma, crushed). Make into pills. That is... (Text incomplete)