【方歌】白驳风生面颈间，风邪相搏白点斑，甚延遍身无痛痒，
治宜消风涂脂痊。
【注】此证自面及颈项，肉色忽然变白，状类斑点，并不痒痛
，由风邪相搏于皮肤，致令气血失和。施治宜早，若因
循日久，甚者延及遍身。初服浮萍丸，次服苍耳膏；外
以穿山甲片先刮患处，至燥痛，取鳗鲡鱼脂，日三涂之
，一方收树孔中水温洗之，洗后捣桂心、牡蛎等分为末
，面油调涂，日三、夜一俱效。
方剂：浮萍丸
组成：紫背浮萍（取大洗净者，晒干）
研细末，炼蜜为丸，如弹子大。每服一丸，豆淋酒
送下。
又方：豆淋酒法
组成：黑豆半升，炒烟起，冲入醇酒三斤，浸一日夜，去豆，
用酒送药。
【方歌】浮萍丸治白驳应，晒干紫背大浮萍，蜜丸弹状豆酒服，
专能发表散邪风。
又方：苍耳膏
组成：苍耳（鲜者，连根带叶取五、七十斤，洗净）
切碎，入大锅内煮烂，取汁，绢滤过，再熬成膏，
磁罐盛之。用时以桑木匙挑一匙，噙口内，用黄酒送下
。服后有风处，必出小疮如豆粒大，此风毒出也，刺破
出汁尽即愈。忌猪肉。
【方歌】苍耳风邪侵皮肤，气血失和白驳生，连根带叶鲜苍耳，
洗净熬膏酒服灵。
【方歌】历疡风从皮肤生，颈项胸腋无痒疼，紫白点点不开大，
皮肤风邪热结成。
【注】此证发于皮肤，多生颈项胸腋，其色紫白，点点相连，
亦无痒疼，较白驳形圆，不延蔓开大。由风邪郁热皮肤
，居久不散而成斯疾。宜服乌蛇散，外用羊蹄草根，共
硫黄蘸醋于绣铁片上研浓汁，日涂二、三次效。
方剂：乌蛇散
组成：乌蛇（酒浸，三两） 羌活
防风 黄芩
苦参（各二两） 人参
沙参 丹参
元参 栀子仁（生）
桂心 秦艽
木通 犀角屑
白蒺藜 升麻
枳壳（麸炒） 白藓皮
川芎（各一两）
共研细末，每服二钱，食远温酒调服。忌鸡、猪、
鱼、蒜、面食、热物之类。
【方歌】乌蛇历疡风热淫，羌活防风芎五参，栀桂秦艽通犀角，
蒺藜升枳白藓芩。
[Prescription Verse] Bai Bo Feng (a disease characterized by white patches on the skin) arises on the face and neck; wind pathogen contends with healthy qi, forming white spots. In severe cases, it spreads over the whole body without pain or itching. Treatment should employ dispelling wind and applying ointments for recovery.
[Annotation] This condition starts from the face and extends to the neck; the skin color suddenly turns white, resembling spots, without itching or pain. It is caused by wind pathogen contending within the skin, leading to disharmony of Qi and Blood. Treatment should be initiated early; if delayed for a long time, it may spread to the entire body in severe cases. Initially administer Fuping Wan (Duckweed Pill), followed by Cang'er Gao (Xanthium Ointment). Externally, scrape the affected area first with pieces of pangolin scales until dryness and pain are felt, then apply eel fat three times daily. Another method involves washing the affected area with warm water collected from tree holes; after washing, grind equal parts of Cinnamomi Cortex (Guixin) and Ostreae Concha (Muli) into fine powder, mix with flour oil, and apply. Apply three times during the day and once at night; both methods are effective.
Prescription: Fuping Wan (Duckweed Pill)
Composition: Zibei Fuping (Hydrophylli Herba, select large ones, wash clean, and sun-dry)
Grind into fine powder, bind with refined honey to form pills the size of a bullet. Take one pill per dose, delivered with Doulin Jiu (Black Bean Dripping Wine).
Another Prescription: Doulin Jiu Method
Composition: Black beans (Heidou, Phaseoli Semen Nigrum) half sheng, stir-fried until smoke rises, pour in three jin of pure wine, soak for one day and night, remove beans, and use the wine to deliver the medicine.
[Prescription Verse] Fuping Wan is suitable for treating Bai Bo Feng; select sun-dried large purple-backed duckweed, make honey pills the size of bullets, take with bean wine, specifically capable of releasing the exterior and dispersing wind pathogen.
Another Prescription: Cang'er Gao (Xanthium Ointment)
Composition: Cang'er (Fructus Xanthii, fresh ones, including roots and leaves, take 50-70 jin, wash clean)
Chop finely, boil in a large pot until soft, extract the juice, filter through silk cloth, and further boil into an ointment. Store in porcelain jars. When using, scoop one spoonful with a mulberry wood spoon, hold in the mouth, and swallow with yellow wine. After taking the medicine, if there are areas where wind toxin exits, small sores the size of bean grains will appear; this indicates the expulsion of wind toxin. Pierce them to drain all fluid, and they will heal. Avoid pork.
[Prescription Verse] Cang'er treats wind pathogen invading the skin; when Qi and Blood are disharmonious, Bai Bo Feng arises. Use fresh Xanthium with roots and leaves, wash clean, boil into ointment, and take with wine for efficacy.
[Prescription Verse] Li Yang Feng (a dermatological condition) arises on the skin; the neck, chest, and axillae show no itching or pain. Purple and white spots connect but do not enlarge. It is formed by wind pathogen and heat binding together in the skin.
[Annotation] This condition manifests on the skin, mostly occurring on the neck, chest, and axillae. The color is purple and white, with connected spots, also without itching or pain. Compared to Bai Bo Feng, the shape is rounder and does not spread or enlarge. It is caused by wind pathogen and stagnant heat residing in the skin for a long time without dissipating. Administer Wushe San (Black Snake Powder). Externally, use roots of Rheum palmatum (Yangti Cao), combined with Sulfur (Liuhuang), grind with vinegar on an iron plate to make a thick juice, apply two to three times daily for effectiveness.
Prescription: Wushe San (Black Snake Powder)
Composition: Wushe (Zaocys, soaked in wine, 3 liang) Qianghuo (Notopterygii Rhizoma et Radix)
Fangfeng (Saposhnikoviae Radix) Huangqin (Scutellariae Radix)
Kushen (Sophorae Flavescentis Radix) (each 2 liang) Renshen (Ginseng Radix)
Shashen (Adenophorae Radix) Danshen (Salviae Miltiorrhizae Radix)
Xuanshen (Scrophulariae Radix) Zhizi Ren (Gardeniae Semen) (raw)
Guixin (Cinnamomi Cortex) Qinjiao (Gentianae Macrophyllae Radix)
Mutong (Akebiae Caulis) Xijiao Xie (Rhinocerotis Cornu, shaved)
Bajili (Tribuli Fructus) Shengma (Cimicifugae Rhizoma)
Zhike (Aurantii Fructus, bran-fried) Baixianpi (Dictamni Cortex)
Chuanxiong (Ligustici Chuanxiong Rhizoma) (each 1 liang)
Grind all into fine powder. Take 2 qian per dose, mixed with warm wine after meals. Avoid chicken, pork, fish, garlic, wheat products, and hot-natured foods.
[Prescription Verse] Wushe San treats the excessive heat of Li Yang Feng; it contains Qianghuo, Fangfeng, Chuanxiong, and five types of Shen (tonics); Zhizi, Guixin, Qinjiao, Mutong, Xijiao; Bajili, Shengma, Zhike, Baixianpi, and Huangqin.