验方
栗树皮（去净外面黑皮，用里面青皮炒焦）
煎水冷洗三四次。
又方 木匠店木柿煎汤洗之。
又方 皮硝不拘多少，用熟水化开，新笔扫之。
又方 生蟹取黄涂之。
又方 老柳树皮煎水洗，一日三次。
又方 干荷叶一斤，水煮浓汁洗。
又方 柳叶煎汤洗二三遍，内服香油一二碗，外搽生蟹黄。
又方 铁匠店磨铁槽中泥，涂之即愈。
又方 蟹沫涂之。
又方 磨刀泥涂。
又方 蟹壳、滑石研细，干者蜜和涂之，湿者干末掺之。
又方 石膏、轻粉、韭汁调搓。
煎方（《集验》）。
元参 知母 石膏 人中黄 黄连 升麻 连翘 牛蒡子（各一钱） 甘草（五分）
淡竹叶二十片煎，不拘时服。忌浴热水，兼戒口味，否则变为顽风癣，愈而又发者多矣。
又方 柳叶搓烂，煎汤洗。
又方 生鸡蛋黄涂，干则又涂，不过三五次。
又方 捣韭菜洗之。
又方 新鲜松木打碎，煎水洗。
又方 频以盐汤洗之。
凡素常遇漆味即患漆疮者 川椒三四十粒捣碎，涂口鼻上，即不能为害。
王肯堂曰∶恶疮，诸痛痒疮，皆属于心，诸湿肿满，皆属于脾，心主血，脾主
肉，血热而肉湿，湿热相合，溃败肌肤，浸淫不休，不可以定名命之，故谓之恶疮也。
然有辨焉，如疥癣瘾疹之属，拂郁气血，在皮肤腠理间者，可以表而散，《内经》有谓
汗之则疮已是矣。若郁气血在肌肉之分，外达皮肤，作寒热而生脓者，或七情所招，或
膏粱之变，皆宜解内热，不宜汗也，张仲景所谓疮家不可发汗，汗之则痉者是矣，一
疮而有宜汗不宜汗之戒，盖热有浅深表里故也。故疮在皮肤，则当因其轻而扬之，汗
之浴之，外以杀虫润燥，皆解凝结涎沫之药敷之；疮之在肌肉，则当因其重而减之，
泻经络之热，清凉气血，外以化脓生肌膏 之；疮在头巅则当射而取之，须酒制寒
凉剂，更以风药升而上之，外以杀虫解热药敷之。能明此三者，其于治疮思过半矣。（《准绳》）
Prescription
Bark of chestnut tree (remove the outer black bark, use the inner green bark and stir-fry until scorched)
Decoct with water, let cool, and wash the affected area three to four times.
Another prescription
Decoct wood shavings from a carpenter's shop in water and wash the affected area.
Another prescription
Use an arbitrary amount of mirabilite (Natrii Sulfas), dissolve it in hot water, and apply with a new brush.
Another prescription
Apply raw crab roe to the affected area.
Another prescription
Decoct bark of old willow trees in water and wash; do this three times a day.
Another prescription
Take one jin (approx. 500g) of dried lotus leaves, boil in water to make a concentrated decoction, and wash.
Another prescription
Decoct willow leaves in water and wash two or three times. Internally consume one or two bowls of sesame oil, and externally apply raw crab roe.
Another prescription
Apply mud from the iron-grinding trough in a blacksmith's shop to the affected area; it will heal immediately.
Another prescription
Apply crab residue to the affected area.
Another prescription
Apply whetstone mud.
Another prescription
Grind crab shells and talc into fine powder. For dry lesions, mix with honey and apply; for moist lesions, sprinkle the dry powder.
Another prescription
Mix gypsum, calomel, and juice of Chinese chive, then rub.
Decoction Prescription (from *Ji Yan*)
Scrophulariae Radix (Xuanshen), Anemarrhenae Rhizoma (Zhimu), Gypsum Fibrosum (Shigao), Hominis Feces Purificata (Renzhonghuang), Coptidis Rhizoma (Huanglian), Cimicifugae Rhizoma (Shengma), Forsythiae Fructum (Lianqiao), and Arctii Fructum (Niubangzi) (each 1 qian); Licorice Root (Gancao) (0.5 qian).
Decoct with twenty slices of Lophatheri Herba (Dan Zhuye). Take at any time. Avoid bathing in hot water, and strictly avoid spicy and rich foods; otherwise, it may transform into stubborn wind-xanthoma, with many cases of recurrence after healing.
Another prescription
Mash fresh willow leaves, decoct in water, and wash.
Another prescription
Apply raw egg yolk; reapply when dry. This need not be done more than three to five times.
Another prescription
Crush Chinese chive and wash the affected area.
Another prescription
Crush fresh pine wood, decoct in water, and wash.
Another prescription
Frequently wash with salt water.
For those who always develop lacquer dermatitis upon encountering the smell of lacquer: Crush thirty to forty grains of Zanthoxylum Pericarpium (Chuanjiao) and apply to the mouth and nose to prevent harm.
Wang Kentang stated: "All painful, itching sores and ulcers belong to the Heart; all dampness, swelling, and fullness belong to the Spleen. The Heart governs Blood, and the Spleen governs Flesh. When Blood is hot and Flesh is damp, damp-heat combines, causing skin and muscle to ulcerate and exude ceaselessly. Since it cannot be named specifically, it is called 'E Chuang' (Malignant Ulcer)."
However, differentiation is necessary. Conditions such as scabies, tinea, and urticaria involve stagnation of Qi and Blood in the skin and interstices; these can be resolved by releasing the exterior through sweating, as stated in the *Neijing*: "Sweating cures sores." If Qi and Blood stagnation is located in the muscle layer, extending outward to the skin, presenting with chills, fever, and pus formation, whether caused by emotional disturbances or dietary excesses of rich/greasy foods, one should clear internal heat rather than induce sweating. This aligns with Zhang Zhongjing's principle that patients with sores should not be sweated, as sweating leads to spasms. Thus, there are contraindications regarding sweating for different sores because heat has varying depths and locations (exterior vs. interior). Therefore, if the sore is in the skin, treat its lightness by dispersing it via sweating and bathing, and externally apply insecticidal and moisturizing agents, as well as drugs resolving condensed phlegm and foam. If the sore is in the muscle, treat its heaviness by reducing it, clearing heat from the meridians, cooling Blood and Qi, and externally applying ointments that promote pus discharge and tissue regeneration. If the sore is on the vertex of the head, use shooting methods to extract it, employing cold-natured herbs processed with wine, combined with wind-dispelling herbs to ascend, and externally apply insecticidal and heat-clearing agents. Understanding these three principles covers more than half of the treatment of sores. (From *Yi Xue Zhun Sheng*)