夫湿癣者。亦有棱廓。如虫行。浸淫赤湿痒。搔之多汁成疮。是其风毒瓦斯攻注。故为湿
癣也。其里亦有虫生。
治湿癣痒痛不可忍。硫黄散方。
硫黄（半两） 斑蝥（半两去翅足） 龙脑〔一两（钱）〕 腻粉（一分）
上件药。都细研如粉。用面脂调如泥。痒痛时。抓破后。以药揩之。
又方。
乌梅（十四枚用肉） 大蒜（十四枚去皮） 梁上尘（三合） 盐（三合）
上件药相和熟捣。以酽醋一升。浸一宿。涂于癣上。即瘥。
治癣湿痒不可忍。黄连散方。
黄连（一两去须） 胡粉（一两细研） 黄柏（一两锉） 雄黄（半两细研）
上件药。捣细罗为散。都研令匀。先以温浆水洗疮。然后取药敷之。不过三四度瘥。
又方。
螺壳（一两） 乱发灰（半两） 龙胆（半两） 胡粉（半两研）
上件药。捣细罗为散。研入胡粉令匀。以油淀和涂之。
又方。
水银（二两） 黄连（二两去须捣末） 胡粉（二两）
上件药。以炼了腊月猪脂半斤。都研。候水银星尽。便以温浆水洗疮。然后涂之。
又方。
羊蹄根（一两） 黄连〔一两半去须（一两）〕 蛇床子（半两）
上件药。捣罗为末。用腊月猪脂。调如稀饧。涂之。
又方。
腻粉（一两）
上以米醋调涂之。
又方。
鲫鱼（一枚可长五寸者净拭不去鳞）
上用硫黄末一分。从鱼口中送入腹内。用净砖一口。安鱼在上。以炭火周回 之。翻转
令鱼黄焦。碾罗为末。入腻粉三钱。同研令匀。以生麻油调涂之。
又方。
羊蹄跟（半斤）
上件药。日未出时采取。须独茎无枝拨者。净洗细切。捣令极烂。入羊乳相和得所。着
少盐拌和令匀。于日中曝两食久。以涂之。
又方。
上取楮叶半斤。细切捣令极烂。敷于癣上。无不瘥者。
治湿癣搔之有黄汁者。宜敷芦荟散方。
芦荟（半两） 甘草（半两）
上件药。捣罗为末。先用浆水洗癣上讫。用帛 干。便以药敷之。日三五上瘥。
Damp tinea (Damp Tinea) presents with distinct margins and a sensation resembling insects crawling on the skin. The affected area is infiltrated, erythematous, moist, and pruritic; scratching leads to exudation and ulceration. This condition arises from the invasion and accumulation of wind-toxic qi in the skin, hence termed damp tinea. Parasites may even be generated within the lesion.
Formula for treating unbearable itching and pain caused by damp tinea: Liu Huang San (Sulfur Powder).
Ingredients: Liu Huang (Cinnabaris, Sulfur, 0.5 liang), Ban Mao (Mylabris, Blister Beetle, 0.5 liang, wings and feet removed), Long Nao (Borneolum Syntheticum, Borneol, 1 qian), Ni Fen (Calomelas, Mercurous Chloride, 1 fen).
Preparation and Administration: Grind all ingredients into a fine powder. Mix with Mian Zhi (Facial Fat/Cream) to form a paste. When itching and pain occur, scratch the affected area until broken, then apply the medicine by rubbing.
Another formula:
Ingredients: Wu Mei (Fructus Mume, Plum Fruit, 14 pieces, flesh only), Da Suan (Bulbus Allii Sativi, Garlic, 14 pieces, peeled), Liang Shang Chen (Dust from Roof Beams, 3 he), Yan (Sal, Salt, 3 he).
Preparation and Administration: Mix and thoroughly pound the ingredients. Soak in 1 sheng of strong vinegar overnight. Apply to the tinea lesions; it will heal.
Formula for treating tinea with severe dampness and unbearable itching: Huang Lian San (Coptis Powder).
Ingredients: Huang Lian (Rhizoma Coptidis, Coptis, 1 liang, roots removed), Hu Fen (Cerussa, Basic Lead Carbonate, 1 liang, finely ground), Huang Bo (Cortex Phellodendri, Phellodendron Bark, 1 liang, chopped), Xiong Huang (Realgar, Arsenic Sulfide, 0.5 liang, finely ground).
Preparation and Administration: Pound the ingredients, sieve through a fine mesh to make a powder, and grind uniformly. First wash the ulcer with warm Jiang Shui (fermented rice water), then apply the powder. It usually heals within three to four applications.
Another formula:
Ingredients: Luo Ke (Concha Haliotidis, Abalone Shell, 1 liang), Luan Fa Hui (Ash of Disordered Hair, 0.5 liang), Long Dan (Radix Gentianae, Gentian Root, 0.5 liang), Hu Fen (Cerussa, Basic Lead Carbonate, 0.5 liang, ground).
Preparation and Administration: Pound the ingredients, sieve through a fine mesh to make a powder, add Hu Fen, and grind uniformly. Mix with You Dian (Oil Dregs/Paste) and apply.
Another formula:
Ingredients: Shui Yin (Hydrargyrum, Mercury, 2 liang), Huang Lian (Rhizoma Coptidis, Coptis, 2 liang, roots removed, pounded into powder), Hu Fen (Cerussa, Basic Lead Carbonate, 2 liang).
Preparation and Administration: Combine with 0.5 jin of refined lard from the twelfth lunar month. Grind all together until the mercury granules completely disappear. Wash the ulcer with warm Jiang Shui (fermented rice water), then apply.
Another formula:
Ingredients: Yang Ti Gen (Radix Rumici Japonici, Japanese Dock Root, 1 liang), Huang Lian (Rhizoma Coptidis, Coptis, 1.5 liang, roots removed; note: original text suggests 1 liang), She Chuang Zi (Fructus Cnidii, Cnidium Fruit, 0.5 liang).
Preparation and Administration: Pound and sieve into powder. Mix with lard from the twelfth lunar month to form a thin syrup consistency, then apply.
Another formula:
Ingredients: Ni Fen (Calomelas, Mercurous Chloride, 1 liang).
Preparation and Administration: Mix with Mi Cu (Rice Vinegar) and apply.
Another formula:
Ingredients: Ji Yu (Cyprinus Carpio, Crucian Carp, one piece, approx. 5 cun long, cleaned but scales retained).
Preparation and Administration: Insert 1 fen of Liu Huang (Cinnabaris, Sulfur) powder into the fish's stomach via the mouth. Place the fish on a clean brick. Roast around with charcoal fire, turning the fish until the internal yellow matter is charred. Grind into powder, add 3 qian of Ni Fen (Calomelas, Mercurous Chloride), and grind uniformly. Mix with Sheng Ma You (Hemp Seed Oil) and apply.
Another formula:
Ingredients: Yang Ti Gen (Radix Rumici Japonici, Japanese Dock Root, 0.5 jin).
Preparation and Administration: Harvest before sunrise, selecting single-stemmed plants without branches. Wash cleanly, chop finely, and pound until extremely soft. Mix with an appropriate amount of Sheep Milk (Ovis Aries Lac, Goat/Sheep Milk) and a little salt. Sun-dry for the duration of two meals, then apply.
Another formula:
Ingredients: Qu Ye (Folius Morus Australis, Mulberry Leaf, 0.5 jin).
Preparation and Administration: Chop finely and pound until extremely soft. Apply to the tinea lesions; healing is assured.
Formula suitable for applying when damp tinea yields yellow fluid upon scratching: Lu Hui San (Aloe Powder).
Ingredients: Lu Hui (Aloes, Aloe, 0.5 liang), Gan Cao (Radix Glycyrrhizae, Licorice Root, 0.5 liang).
Preparation and Administration: Pound and sieve into powder. First wash the tinea area with Jiang Shui (fermented rice water), dry with a cloth, then apply the powder. Apply three to five times daily; it will heal.