《病源论》云∶人皮肤虚，为风寒所折，则起隐疹。寒多则色赤，风多则色白，甚者痒
痛，
《葛氏方》卒得风搔隐疹，搔之生疮汁出。初痒后痛，烦闷不可勘方∶
烧石令赤，以少水中，纳盐数合，及热的以洗渍之。
又方∶锉桑皮二斗许，煮令浓及热，以自洗浴。
又方∶以盐汤洗之， （大廉反）菜涂之。
又方∶以慎火合豉，捣以敷之。
《医门方》云∶煮蒴 汤和少酒以浴之，极佳。
《刘涓子》方治耳体隐疹发疮方∶
地榆根（三两） 黄连（二两） 大黄（四两） 黄芩（四两） 苦参（八两） 甘草
（六两） 芎 （
上七物，以水六升，煮取三升半，浴洗。
《孟诜食经》云∶拧茎单煮，洗浴之。
又方∶茺蔚可作浴汤。
又方∶煮赤小豆取汁，停冷洗，不过三四。
又方∶捣蘩蒌，封上。
《病源论》云∶凡癞病，皆是恶风及犯触忌害得之。初觉皮肤不仁，或淫淫苦痒如虫行；
或
最
又有乌癞、白癞，论诸癞（诸癞，或本无此字）形状在本书依繁不载。
又云∶酒醉露卧，不幸生癞。
《录验方》云∶有人五癞八风之法∶一木癞、二石癞、三风癞、四水癞、五沸癞。
《葛氏方》云∶癞病乃有八种云云。
治白癞乌癞方∶
苦参根皮干之粗捣，以好酒三斗，渍二十一日，去滓，服三合，日三。
又方∶干艾叶随多少，浓煮以渍面及饭酿如常法，酒熟随意饮，恒使熏。
又方∶取马薪蒿，一名马矢蒿，一名烂石草，捣末，末服方寸匕。日三，百日更赤起，
一年
又方∶捣好雌黄末，苦酒和，鸡羽染以涂疮上，干复涂之。
《僧深方》治癞方∶
水中荷浓煮以自渍半日，用此方多愈。
又方∶水中浮青萍浓煮，自渍之。
《范汪方》治大风癞疮方∶
取 （音律）草一担，二石水，煮取一石汁，以渍疮，不过三渍愈。
《集要方》治癞方∶
留黄，苦酒和涂之。
《诸病源候论》说：人的皮肤虚弱，被风寒邪气侵袭，就会起隐疹（一种突发性的、颜色与肤色相近或微红的皮疹）。寒邪偏多则皮疹色赤，风邪偏多则皮疹色白，严重的会出现痒痛。
《葛氏方》记载：突然感受风邪而搔抓隐疹，搔抓后生疮并流出汁液。开始是痒，后来变痛，烦闷难忍。处方：将石头烧红，投入少量水中，加入几合盐，趁热清洗浸泡患处。
《刘涓子鬼遗方》治疗耳部及身体隐疹发疮的处方：
地榆根（三两） 黄连（二两） 大黄（四两） 黄芩（四两） 苦参（八两） 甘草（六两） 川芎（缺具体剂量，依原文留空）
以上七味药，用水六升，煮取三升半，用来洗浴患处。
又一方：茺蔚（益母草）可以煮成浴汤。
又一方：煮赤小豆取汁，冷却后清洗，不超过三四次即可。
又一方：捣碎蘩蒌（一种植物），封贴于患处。
《诸病源候论》说：凡是癞病（泛指麻风等慢性皮肤病），都是因恶风邪气以及触犯禁忌所致。刚开始感觉皮肤麻木不仁，或者瘙痒如虫行；有的……（原文此处有残缺/省略号表示内容缺失或列举未完）。最……（原文此处有残缺）。又有乌癞、白癞，论述各种癞病的形状在本书中因篇幅繁复未详细记载。
又说：醉酒露宿野外，不幸会患上癞病。
《录验方》说：有人有五癞八风的方法：一是木癞、二是石癞、三是风癞、四是水癞、五是沸癞。
《葛氏方》说：癞病共有八种等等。
治疗白癞、乌癞的处方：
将苦参根皮晒干粗捣，用好酒三斗浸泡二十一天，去渣，每次服用三合，每日三次。
又一方：干艾叶适量，浓煮后用其蒸汽熏蒸面部，并按常法酿酒，酒熟后随意饮用，经常保持熏蒸。
又一方：取马薪蒿，又名马矢蒿、烂石草，捣成粉末，每次服用一方寸匕。每日三次，百日后面色更红润，一年……（原文此处有残缺）。
又一方：捣碎好的雌黄粉末，用醋调和，用鸡羽毛蘸取涂抹在疮上，干了再涂。
《僧深方》治疗癞病的处方：
将水中的荷（荷花或荷叶）浓煮，用它浸泡身体半天，用这个方子大多能痊愈。
又一方：将水中漂浮的青萍（浮萍）浓煮，用来浸泡患处。
According to *Zhu Bing Yuan Hou Lun* (Treatise on the Pathogenesis and Manifestations of All Diseases), when human skin is deficient, it is invaded by wind-cold pathogens, resulting in *yin zhen* (hidden urticaria/rash). If cold predominates, the rash appears red; if wind predominates, it appears white. In severe cases, itching and pain occur.
*Ge Shi Fang* (Formulas by Ge Hong) records: Sudden contraction of wind while scratching hidden urticaria can cause sores to form with exudate. It begins with itching and progresses to pain, accompanied by unbearable restlessness. Prescription: Heat a stone until red-hot, quench it in a small amount of water, add several *he* (a unit of volume) of salt, and wash/soak the affected area while hot.
Another prescription: Chop approximately two *dou* of mulberry bark, boil until thick and hot, and use for bathing.
Another prescription: Wash the affected area with salt water, then apply *li* (Chenopodium album) leaves.
Another prescription: Mash *shen huo* (Artemisia argyi or similar herb) with fermented soybeans (*chi*) and apply as a poultice.
*Yi Men Fang* (Medical Gate Formulas) states: Bathing with decoction of *shuo* (Achyranthes bidentata) mixed with a little wine yields excellent results.
*Liu Juanzi Gui Yi Fang* (Liu Juanzi's Ghost Remnant Formulas) treats ear and body hidden urticaria with sores using the following formula:
Radix Sanguisorbae (3 liang), Rhizoma Coptidis (2 liang), Radix et Rhizoma Rhei (4 liang), Cortex Phellodendri (4 liang), Radix Sophorae Flavescentis (8 liang), Radix Glycyrrhizae (6 liang), Radix Chuanxiong (dosage omitted in source).
Boil these seven ingredients in six *sheng* of water until reduced to three and a half *sheng*, and use for washing/bathing.
*Meng Shen Shi Jing* (Dietary Classic by Meng Shen) states: Boil stems of *ning* (likely Tribulus terrestris stem) alone and use for bathing.
Another prescription: *Chongwei* (Herba Leonuri Japonici) can be boiled into a bath solution.
Another prescription: Boil Adzuki beans, take the juice, let it cool, and wash with it. No more than three to four times are needed.
Another prescription: Mash *fan lou* (likely a type of plant, possibly related to *Fritillaria* or local herb) and apply as a compress.
*Zhu Bing Yuan Hou Lun* states: All forms of *lai* disease (leprosy-like chronic dermatoses) arise from evil wind pathogens and violation of taboos. Initially, one may feel numbness in the skin, or intense itching like insects crawling. There are also black *lai* and white *lai*. The descriptions of various *lai* conditions are not detailed in this book due to their complexity.
It further states: Sleeping outdoors while intoxicated may unfortunately lead to *lai* disease.
*Lu Yan Fang* (Verified Formulas) mentions methods for five types of *lai* and eight types of wind: 1. Wood *lai*, 2. Stone *lai*, 3. Wind *lai*, 4. Water *lai*, 5. Boiling *lai*.
*Ge Shi Fang* states that there are eight types of *lai* disease, etc.
Prescription for treating White *Lai* and Black *Lai*:
Dry the root bark of Sophorae Flavescentis, coarsely crush it, soak in three *dou* of good wine for twenty-one days, strain, and drink three *he* per dose, three times daily.
Another prescription: Use an appropriate amount of dried Folium Artemisiae Argyi, boil strongly, use the steam to fumigate the face, and brew rice wine in the usual manner. Drink the wine freely once ready, ensuring regular fumigation.
Another prescription: Take Ma Xin Hao (also known as Ma Shi Hao or Lan Shi Cao, likely Artemisia capillaris or similar), grind into powder, and take one *cun bi* (square-inch spoonful) per dose. Three times daily. After one hundred days, the complexion may become ruddier; after one year... [text incomplete].
Another prescription: Grind high-quality Realgar (Orpiment) into powder, mix with vinegar, and apply to the sores using chicken feathers. Reapply when dry.
*Seng Shen Fang* (Monk Shen's Formulas) for treating *Lai*:
Boil lotus (He) found in water strongly, and soak the body in it for half a day. This formula cures most cases.
Another prescription: Boil floating duckweed (Qing Ping) found in water strongly, and soak the affected areas.
*Fan Wang Fang* (Fan Wang's Formulas) for treating severe wind-induced *Lai* sores:
Take one dan of Lv Cao (likely a specific medicinal grass, pronunciation 'lv'), boil in two *shi* of water until reduced to one *shi* of juice. Soak the sores in it. Healing occurs within no more than three soaks.
*Ji Yao Fang* (Essential Formulas Collection) for treating *Lai*:
Sulfur, mixed with vinegar, applied topically.