验方（《新都医案》）
栝蒌 甘草节 金银花（各五钱） 连翘 柴胡 青皮（各二钱） 水煎服。
囊痈溃后。
蚌壳（ ） 黄连 青黛（各等分） 研细搽之。
囊痈囊漏皮硬浓而出水者皆能治。
苍术 吴茱萸（炒） 川芎 当归身（各一钱） 白术 天花粉 官桂 木通（各八分）
青木香（一钱五分） 生黄 （二钱） 龙胆草（五分） 蛇盘果（二钱，如无即以草代之）
上锉一剂，白酒一碗煎，空心服。
囊痈浑身发热口苦嗌干囊上红肿疼肿是也。
杜仲（盐水拌，炒断丝，磨为细末，用筛揉去丝，净末一两）
生酒一斤，煎半斤，服之取汗，即消肿定痛。如未愈，再用一服，即愈。如外
敷用明雄黄一两，百草霜一钱，研匀，蜜水调敷，如干以鸡翎蘸水润之，愈后再用
除根药。用生南星、苏木、紫苏叶各五钱，陈香橼一个，共为细末。取未曾下水的犍
猪尿胞一个，以酒煮烂捣化，同药末捣匀，做饼晒干烘脆，再磨为细末，蒸饼打糊为
丸，空心烧盐汤送下八九十丸，服此一料，永远除根不发。
囊痈。
海螵蛸 蛤粉 儿茶（各等分）
研极细掺之。
又方
干荷叶（焙） 紫苏叶（各等分，焙）
研极细，酒调浓敷赤肉上，外用油纸包扎。
王肯堂曰∶肾脏风即肾囊风疮，生于隐处，瘙痒成疮，挟有耳鸣耳痒，鼻赤齿浮，指甲缝白等证是也（《准绳》）
戴院使曰∶ 风俗名肾脏风疮，因精水调外，为风湿所袭，从阴囊湿汗作痒起，
流注四肢，手子白色，悉生疮疡。（蛇床子、吴茱萸或甘草节煎洗，外用苋菜根、茎、叶，烧存性干掺，并治阴汗生疮。）
陈实功曰∶肾囊风乃肝经风湿而成，其患作痒，喜浴热湿，其形肾囊疙瘩顽麻，破流脂水者是。（《正宗》）
Empirical Prescription (from *Xindu Medical Cases*)
Gualou (Trichosanthis Fructus), Gancao Jie (Licorice Joint), and Jinyinhua (Lonicerae Japonicae Flos) (each 5 qian); Lianqiao (Forsythiae Fructus), Chaihu (Bupleuri Radix), and Qingpi (Citri Reticulatae Pericarpium Viride) (each 2 qian). Decoct in water and take orally.
After the rupture of Nangyong (Scrotal Abscess):
Bangke (Concha Arcae, calcined), Huanglian (Coptidis Rhizoma), and Qingdai (Indigo Naturalis) (equal parts). Grind into fine powder and apply externally.
This prescription treats cases where the scrotal abscess has ruptured, resulting in hardening of the scrotal skin with pus discharge and exudation.
Cangzhu (Atractylodis Rhizoma), Wuzhuyu (Evodiae Fructus, stir-fried), Chuanxiong (Ligustici Chuanxiong Rhizoma), and Danggui Shen (Angelicae Sinensis Radix, root portion) (each 1 qian); Baizhu (Atractylodis Macrocephalae Rhizoma), Tianhuafen (Trichosanthis Radix), Guanzi Gui (Cinnamomi Cortex), and Mutong (Akebiae Caulis) (each 8 fen); Qingmuxiang (Tutcheri Aromatis Radix) (1.5 qian); Sheng Huangqi (Astragali Radix) (2 qian); Longdancao (Gentianae Radix) (5 fen); Shepan Guo (2 qian; if unavailable, substitute with another herb).
Chop the above herbs as one dose, decoct with one bowl of white wine, and take on an empty stomach.
This prescription is indicated for Nangyong accompanied by systemic fever, bitter taste in the mouth, dryness of the throat, and redness, swelling, and pain of the scrotum.
Duzhong (Eucommiae Cortex, mixed with salt water, stir-fried until fibers break, ground into fine powder, sifted to remove fibrous material, retaining only the pure powder, 1 liang).
Decoct with one jin (approx. 500g or 16 oz depending on historical context, here likely referring to volume/weight ratio for decoction) of raw wine until half remains. Take orally to induce sweating, which will reduce swelling and relieve pain. If not cured, administer another dose to achieve cure. For external application, use Ming Xionghuang (Realgar, 1 liang) and Baicaoshuang (Soot from burning various herbs, 1 qian), grind uniformly, mix with honey water for topical application. If it dries, moisten with chicken feather dipped in water. After healing, take a root-removing prescription. Take Sheng Nanxing (Arisaematis Rhizoma), Sumu (Sappanwood), and Zisuye (Perillae Folium) (each 5 qian), and Chen Xiangyuan (Citri Sarcodactylis Fructus, aged) (one piece). Grind all into fine powder. Take one bladder from a castrated pig that has never held water, boil in wine until soft and mushy, mash together with the herbal powder, form into cakes, sun-dry and bake until crisp, then grind into powder. Use steamed cake paste as a binder to make pills. Take 80-90 pills on an empty stomach with salt-water broth. One course of this treatment ensures permanent cure without recurrence.
Nangyong (Scrotal Abscess):
Haipiaoxiao (Sepiae Endoconcha), Gafen (Margarita), and Ercha (Katechu) (equal parts).
Grind extremely finely and sprinkle on the affected area.
Another Prescription:
Gan Heye (Loti Folium, dried and roasted) and Zisuye (Perillae Folium) (equal parts, dried and roasted).
Grind extremely finely, mix with wine to form a thick paste, apply to erythematous skin, and cover externally with oiled paper.
Wang Kentang stated: "Shenzang Feng" (Kidney Wind) is also known as Shennang Feng Chuang (Scrotal Wind Sores). It arises in hidden areas, causing itching leading to sores. Accompanying symptoms may include tinnitus and ear itching, nasal redness, loose teeth, and whitish discoloration in the nail beds (from *Yixue Zhunsheng*).
Imperial Physician Dai stated: In folk custom, this is called Shenzang Feng Chuang. It results from seminal fluid deficiency combined with external impurity, invaded by wind-damp pathogens. It begins with damp sweat and itching of the scrotum, spreading to the limbs, presenting as white spots on fingers and generalized sores. (Treatment: Wash with decoction of Shechuangzi (Cnidii Fructus), Wuzhuyu, or Gancao Jie. Externally, burn Xi Cai Gen/Jing/Ye (Amaranthus root/stem/leaf) to preserve its nature, dry, and sprinkle. This also treats Yin Han (scrotal dampness) causing sores.)
Chen Shigong stated: Shennang Feng is caused by wind-dampness in the Liver Meridian. The primary symptom is itching, with a preference for bathing in hot, humid conditions. Morphologically, it presents as nodules and numbness of the scrotum, breaking down to exude fatty fluid (from *Waike Zhengzong*).