癣有五种∶曰湿、顽、风、马、牛是也。皆因血分燥热，以致风毒克于皮肤，浮浅于疥，多
挟风湿热毒而成，亦有日久生虫，致多年不愈者。宜内外用药，或防风通圣散减硝黄，加浮萍、
皂角刺，服之有效，外用擦药。
主方 浮萍 当归 川芎 赤芍 麻黄（天热减半） 荆芥 防风 甘草（各二钱）
淡豆豉（六十粒） 上加葱白（二根），水煎服，取汗出。
敷方 雄黄（一钱） 斑蝥（十个） 蛇床子（末） 寒水石 金毛狗脊 轻粉 硫黄
朴硝（各五分）上各研细末和匀，香油调搽，淫者干敷。
又方 白蔹（一两） 川槿皮（五钱） 雄黄（三钱）上为细末，以无根水调，饭上蒸赤色
为度。癣不可抓破搽药，七日勿洗。
又方 枯矾（四钱） 樟脑（二钱）上为细末，以醋调，抓伤擦。
简便方 黑枣一枚，巴豆肉三粒，捣匀擦。
又 蒜捣碎煮水。洗浴拭干，再用生桐油搽上，火烘干，愈为度。
近新漆器，或漆污身，感其气，则面身肿热痛痒。或谓木形人，患漆毒。
主方 甘草 滑石（各三钱） 连翘（钱半）
水煎成，调雄黄、青黛服。
简便方 铁店磨刀水，盆底垢脚涂。或杉木屑煎汤洗，效。或蟹壳炙、研末，水调涂。或面
身俱患，甘草煎汤浴，安。
Tinea (ringworm) presents in five types: namely, damp tinea, stubborn tinea, wind tinea, horse tinea, and cow tinea. All these conditions arise from dryness-heat in the blood level, leading to wind-toxin attacking the skin. The lesions are superficial, even more so than scabies, and are often complicated by wind-dampness-heat-toxin. In some cases, parasites may develop over a long period, resulting in chronic non-healing wounds. Treatment should involve both internal and external medications. One effective approach is to use Fangfeng Tongsheng San (Windproof Unblocking Supreme Powder), reducing the dosage of Mangxiao (Mirabilite) and Dahuang (Rhubarb), and adding Pingtong (Floating Duckweed) and Zaojiaoci (Gleditsia Spine). This should be taken internally, accompanied by external application.
Main Formula: Pingtong (Duckweed), Danggui (Angelica Sinensis), Chuanxiong (Ligusticum Chuanxiong), Chishao (Red Peony Root), Mahuang (Ephedra) [reduce dosage by half in hot weather], Jingjie (Schizonepeta), Fangfeng (Saposhnikovia), Gancao (Licorice) [each 2 qian], Danshichixu (Fermented Soybean) [60 grains]. Add two stalks of Congbai (Scallion White) to the above ingredients, decoct with water, and take orally to induce sweating.
External Application Formula: Xionghuang (Realgar), Banmao (Mylabris) [10 insects], Chuangzi (Cnidium Seed) [powdered], Hanshuishi (Calcitum), Jinmaogouji (Cibotium Barometz), Qingfen (Calomel), Liuhuang (Sulfur), Puxiao (Natrii Sulfas) [each 5 fen]. Grind each ingredient into a fine powder, mix uniformly, and apply with sesame oil. If there is excessive exudate, apply the dry powder directly.
Another Prescription: Bailian (Ampelopsis Radix), Chuanjinpi (Hibiscus Tiliaceus Bark), Xionghuang (Realgar) [3 qian]. Grind into a fine powder, mix with Wugen Water (rainwater or dew), and steam over rice until it turns red. Do not scratch the tinea before applying medication, and avoid washing the area for seven days.
Another Prescription: Kufan (Alumen Exsiccatum), Zhangnao (Borneolum Syntheticum) [4 qian and 2 qian respectively]. Grind into a fine powder, mix with vinegar, and rub on scratched areas.
Simple Method: Mash one black date (Heizao) and three kernels of Badou (Croton Seed) evenly, then rub onto the affected area.
Another Method: Crush garlic and boil in water. After bathing and drying the body, apply raw Tung Oil (Tung Tree Fruit Oil) to the affected area and dry with heat until healed.
Recently, contact with newly lacquered vessels or getting lacquer on the body, and inhaling its fumes, can cause swelling, heat, pain, and itching of the face and body. Some attribute this to individuals with a Wood constitution being susceptible to lacquer toxicity.
Main Formula: Gancao (Licorice), Huashi (Talcum) [each 3 qian], Lianqiao (Forsythia Fruit) [1.5 qian]. Decoct with water, and mix in Xionghuang (Realgar) and Qingdai (Indigo Naturalis) before taking.
Simple Methods: Apply water used for sharpening knives at iron shops, or... [Note: The phrase "pen di gou jiao" appears to be a textual error in the original text, likely meaning "affected area"; translated as such for medical accuracy] ...apply. Alternatively, wash with a decoction of Shanmu (Chinese Fir) wood shavings, which is effective. Or, roast crab shells, grind into powder, mix with water, and apply. If the face and whole body are affected, bathe in a decoction of Gancao (Licorice) to find relief.