夫疠风者。天地杀物之风。燥金之气也。故令疮而不脓。燥而不湿。燥金之体涩。故一
客于
人。则荣卫之行滞。令人不仁而麻木也。毛落眉脱者。燥风伐其荣卫。而表气不固也。遍身
癞疹者。上气下血俱病也。诸痛属实。诸痒属虚。疠风之痒。固多有虫。而卫之虚。不可诬
也。是症也。以润燥之剂主之。白花蛇血气之属也。用血气之属以驱风。岂不油然而润乎。然
其性中有毒。同气相求。直达疠风毒舍之处。岂不居然而效乎。皂角之性。善于洁身。则亦
可以洁病。苦参之性。善于去热。则亦可以去风。昔人治以防风通圣散。此方乃汗下之剂
也。非荣卫虚弱者所宜。今以玉屏风丸更之。则黄 可以排脓补表。防风可以利气疏邪。白
术可以实脾而补肌矣。
补气泻荣汤
黄 当归 生地黄 黄连（各三分） 人参（二分） 黄芩（四分） 连翘 升麻（各六分）
甘
草（一钱五分） 全蝎（二分） 虻虫（一枚去足微炒） 桃仁（二个） 苏木 梧桐泪 地龙（各
三分） 水蛭（三枚炒尽烟） 桔梗（五分） 麝香（少许）
上锉一剂。水煎温服。
一论治疠风。手足麻木。毛落眉脱。满身癞疹。搔痒成疮等症。
愈风换肌丹
白花蛇（二条头尾全者酒浸二三日去骨阴干） 苦参（四两） 皂角（五斤去皮弦酒浸一宿
取出以水熬膏）
上为末。以皂角膏和丸如梧子大。每服七十丸。以防风通圣散送下。
苦参酒
用苦参五斤。好酒三斗。浸一月。每服一合。日三服。
苦参丸
苦参（一斤） 防风 荆芥 羌活 当归 川芎 赤芍 金银花 独活 连翘 黄芩 黄
连栀子 滑石 白术 甘草（各一两）
上为末。面糊为丸。如梧子大。每服百丸。苦参酒送下。
一治癞风。
如圣丹
全蝎（酒洗一两） 天麻（一两五钱） 僵蚕（炒） 蝉蜕 苦参（各一两） 防风（一两五钱）
荆芥
羌活 细辛 白芷 川芎 当归 白芍（各一两） 人参（五钱） 白术（去芦） 枳壳（去穣）
桔梗 滑石 黄柏（去皮） 大黄（煨各一两） 芒硝（五钱） 麻黄 石膏（各一两） 黄连（五
钱） 大枫子（去壳一个） 郁金（五钱） 皂角刺 山栀子 连翘（各一两） 独活（五钱）
上三十味为细末。用红米糊为丸。如梧子大。每服五七十丸。用六安茶送下。日三服
即愈。
半身不遂。尿如靛水黑色。此病之深者。只用此药二料。如眉毛须发脱落。日渐生长。切不
可食羊鸡鹅猪头蹄鲤鱼生冷。如肯食淡。百日全愈。如癞破裂。只用大枫子壳煎汤洗。春夏
石膏滑石根据方。秋冬二味减半。遇春分秋分。服防风通圣散一帖。空心服。利三四次。以粥
补之。方见中风。
一治疠风眉发脱落者。取皂角刺。九蒸九晒为末。每服二钱。温汤送下。久服眉发再生
肌肤悦润。眼目倍明。
一治大风恶疾。双目昏暗。眉发自落。鼻梁崩倒。肌肤疮烂。服此立效。皂角刺三斤。
炭火蒸炙晒干为末。煎大黄浓汤调服。数日间发生肌润目明。诸病立瘥。
一治大麻风。即大风疮。用人蛆一升。细布袋盛之。放在急水内流之。干净取起。以麻
黄煎
汤。将蛆虫连布袋。浸之良久。取起晒干。再用甘草煎汤浸晒干。又用苦参汤浸晒干。又用
童便浸晒干。又用生姜葱煎汤。投虫入内。不必取起。就放锅内煮干。就焙干为末。每虫
一两。加麝香二钱。蟾酥三钱。共为一处。入瓷器内。每服一钱。石藓花煎汤下。（花即山中
石上生白藓如钱样）
以苍耳草煎汤洗浴。然后服药。七日见效。体浓者一日一服。弱者三日一服。神效。
疠风，是天地间伤害万物的风气，属于燥金之气。因此它导致疮疡却不化脓，干燥而不湿润。燥金之体涩滞，一旦侵入人体，就会使营卫之气运行阻滞，令人感觉不仁且麻木。毛发脱落、眉毛脱落的症状，是因为燥风损伤了营卫，导致体表之气不固。全身出现癞疹，是由于上焦气分和血分都受到病变影响。各种疼痛多属实证，各种瘙痒多属虚证。疠风的瘙痒，固然有很多是由虫邪引起，但卫气的虚弱也是不可忽视的。治疗这种病症，应以润燥的方剂为主治。白花蛇属于血气类药材，用血气类的药物来驱除风邪，难道不是能自然而然地起到滋润作用吗？然而它的性质中含有毒性，利用“同气相求”的原理，可以直达疠风毒邪潜伏的地方，难道不能立刻见效吗？皂角的性质善于清洁身体，那么也可以用来清洁病邪；苦参的性质善于清热，那么也可以用来祛风。过去有人用防风通圣散治疗此病，这个方剂属于汗下法（发汗和攻下）的方剂，不适合营卫虚弱的人使用。现在用玉屏风丸替代，其中黄芪可以排脓并补益表气，防风可以利气并疏散邪气，白术可以实脾并补益肌肉。
补气泻荣汤
黄芪、当归、生地黄、黄连（各三分），人参（二分），黄芩（四分），连翘、升麻（各六分），甘草（一钱五分），全蝎（二分），虻虫（一枚，去足，微炒），桃仁（二个），苏木、梧桐泪、地龙（各三分），水蛭（三枚，炒至烟尽），桔梗（五分），麝香（少许）。
以上药材锉碎为一剂，加水煎煮，温服。
一篇论述治疗疠风，症状包括手足麻木、毛发脱落、眉毛脱落、满身癞疹、搔痒成疮等。
愈风换肌丹
白花蛇（两条，头尾完整者，酒浸二三日，去骨，阴干），苦参（四两），皂角（五斤，去皮弦，酒浸一夜，取出用水熬成膏）。
以上研为细末，用皂角膏调和制成如梧桐子大小的丸药。每次服用七十丸，用防风通圣散送服。
苦参酒
用苦参五斤，好酒三斗，浸泡一个月。每次服用一合，每日三次。
苦参丸
苦参（一斤），防风、荆芥、羌活、当归、川芎、赤芍、金银花、独活、连翘、黄芩、黄连、栀子、滑石、白术、甘草（各一两）。
以上研为细末，用面糊调和制成如梧桐子大小的丸药。每次服用一百丸，用苦参酒送服。
一篇治疗癞风。
如圣丹
全蝎（酒洗一两），天麻（一两五钱），僵蚕（炒）、蝉蜕、苦参（各一两），防风（一两五钱），荆芥、羌活、细辛、白芷、川芎、当归、白芍（各一两），人参（五钱），白术（去芦头）、枳壳（去瓤）、桔梗、滑石、黄柏（去皮）、大黄（煨，各一两），芒硝（五钱），麻黄、石膏（各一两），黄连（五钱），大枫子（去壳一个），郁金（五钱），皂角刺、山栀子、连翘（各一两），独活（五钱）。
以上三十味药研为细末，用红米糊调和制成如梧桐子大小的丸药。每次服用五七十丸，用六安茶送服，每日三次，即可痊愈。
如果半身不遂，尿液像靛蓝水一样黑，这是病情深重的表现。只需用此药两料。如果眉毛胡须头发脱落，会日渐生长。切记不可食用羊肉、鸡肉、鹅肉、猪头蹄、鲤鱼及生冷食物。如果能坚持吃清淡饮食，百日即可完全痊愈。如果癞风破裂，只用大枫子壳煎汤清洗。春夏季节，石膏和滑石按原方用量；秋冬季节这两味药减半。遇到春分和秋分，空腹服用防风通圣散一帖，排泄三四次后，用粥食补养。该方见中风篇。
一篇治疗疠风导致眉发脱落的情况。取皂角刺，经过九蒸九晒后研为细末。每次服用二钱，用温水送服。长期服用可使眉发生长，肌肤悦润，眼睛更加明亮。
一篇治疗大风恶疾，双目昏暗，眉毛头发脱落，鼻梁塌陷，肌肤溃烂。服用此药立竿见影。皂角刺三斤，用炭火蒸炙晒干后研为细末，用大黄浓汤调服。数日内毛发再生，肌肤润泽，眼睛明亮，诸病立即好转。
一篇治疗大麻风，即大风疮。用人蛆一升，装入细布袋中，放在急流水中冲洗。洗净取出，用麻黄煎汤，将人蛆连同布袋浸泡良久，取出晒干。再用甘草煎汤浸泡晒干。又用苦参汤浸泡晒干。又用童便浸泡晒干。又用生姜葱煎汤，投入虫子在内，不必取出，直接在锅内煮干，然后焙干研为细末。每用人蛆一两，加入麝香二钱，蟾酥三钱，混合在一起，放入瓷器内。每次服用一钱，用石藓花煎汤送下。（石藓花即山中石头上生长的白色苔藓，形状如铜钱样）。
先用苍耳草煎汤洗浴，然后再服药。七日见效。体质壮实者一日服用一次，体弱者三日服用一次，效果神奇。
Li Feng (Leprosy) is the wind of heaven and earth that harms all things; it belongs to the Qi of Dry Metal. Therefore, it causes sores that do not suppurate and dryness without moisture. The nature of Dry Metal is astringent and obstructive. Once it invades the human body, it stagnates the circulation of Ying (Nutritive) and Wei (Defensive) Qi, causing insensitivity and numbness. Hair loss and eyebrow loss occur because Dry Wind damages Ying and Wei, leading to insecure Exterior Qi. Generalized leprosy rashes indicate that both Upper Jiao Qi and Blood are diseased. All pain belongs to Excess; all itching belongs to Deficiency. The itching in Li Feng is indeed often caused by parasites, but the Deficiency of Wei Qi cannot be denied. For this syndrome, moistening and drying-resolving formulas should be used as the primary treatment. Baihua She (Bungarus multicinctus, White-banded Snake) belongs to the category of blood and Qi tonics. Using substances that nourish blood and Qi to dispel wind will naturally provide lubrication. However, its nature contains toxicity. Through the principle of "like attracts like," it can reach directly to the abode of the Li Feng toxin, ensuring immediate efficacy. Zao Jiao (Gleditsiae Fructus, Chinese Tamarind Pod) has a nature good at cleansing the body, thus it can also cleanse the disease. Ku Shen (Sophorae Flavescentis Radix, Sophora Root) has a nature good at clearing heat, thus it can also dispel wind. In the past, Fangfeng Tongsheng San was used to treat this condition. This formula is a sweating and purgative method, which is not suitable for those with deficient Ying and Wei. Now, replace it with Yupingfeng Wan. Huangqi (Astragali Radix, Astragalus Root) can drain pus and tonify the exterior; Fangfeng (Saposhnikoviae Radix, Saposhnikovia Root) can promote Qi flow and disperse pathogens; Baizhu (Atractylodis Macrocephalae Rhizoma, Large-headed Atractylodes Rhizome) can solidify the Spleen and tonify muscles.
Buqi Xierong Tang (Tonifying Qi and Draining Ying Decoction)
Huangqi (3 fen), Danggui (3 fen), Sheng Dihuang (3 fen), Huanglian (3 fen), Renshen (2 fen), Huangqin (4 fen), Lianqiao (6 fen), Shengma (6 fen), Gancao (1 qian 5 fen), Quanxie (2 fen), Mengchong (1 piece, feet removed, slightly stir-fried), Taoren (2 pieces), Sumu (3 fen), Wutong Lei (3 fen), Dilong (3 fen), Shuizhi (3 pieces, stir-fried until smoke ceases), Jiegeng (5 fen), Shexiang (a small amount).
Crush these ingredients into one dose. Decoct with water and take warm.
One discussion on treating Li Feng, with symptoms such as numbness in hands and feet, hair and eyebrow loss, generalized leprosy rashes, and itching leading to sores.
Yufeng Huanji Dan (Wind-Dispelling and Skin-Rejuvenating Pill)
Baihua She (2 pieces, complete head and tail, soaked in wine for 2-3 days, bones removed, dried in shade), Kushen (4 liang), Zaojiao (5 jin, skin and strings removed, soaked in wine overnight, taken out and boiled into a paste with water).
Grind into fine powder. Mix with Zaojiao paste to form pills the size of wutong seeds. Take 70 pills per dose, delivered with Fangfeng Tongsheng San.
Kushen Jiu (Sophora Wine)
Use 5 jin of Kushen and 3 dou of good wine. Soak for one month. Take 1 he per dose, three times daily.
Kushen Wan (Sophora Pill)
Kushen (1 jin), Fangfeng (1 liang), Jingjie (1 liang), Qianghuo (1 liang), Danggui (1 liang), Chuanxiong (1 liang), Chi Shao (1 liang), Jinyinhua (1 liang), Duhuo (1 liang), Lianqiao (1 liang), Huangqin (1 liang), Huanglian (1 liang), Zhizi (1 liang), Huashi (1 liang), Baizhu (1 liang), Gancao (1 liang).
Grind into fine powder. Use wheat paste to form pills the size of wutong seeds. Take 100 pills per dose, delivered with Kushen Jiu.
One treating Leprosy.
Rusheng Dan (Like-Sage Pill)
Quanxie (1 liang, washed in wine), Tianma (1 liang 5 qian), Jiangcan (stir-fried), Chanui (1 liang each), Kushen (1 liang), Fangfeng (1 liang 5 qian), Jingjie (1 liang), Qianghuo (1 liang), Xixin (1 liang), Baizhi (1 liang), Chuanxiong (1 liang), Danggui (1 liang), Baishao (1 liang), Renshen (5 qian), Baizhu (rhizome removed) (1 liang), Zhike (pulp removed) (1 liang), Jiegeng (1 liang), Huashi (1 liang), Huangbai (bark removed) (1 liang), Dahuang (roasted) (1 liang), Mangxiao (5 qian), Mahuang (1 liang), Shigao (1 liang), Huanglian (5 qian), Dafengzi (shell removed, 1 piece), Yujin (5 qian), Zaojiao Ci (1 liang), Shanzhizi (1 liang), Lianqiao (1 liang), Duhuo (5 qian).
Grind these thirty flavors into fine powder. Use red rice paste to form pills the size of wutong seeds. Take 50-70 pills per dose, delivered with Lu'an tea, three times daily. Cure follows.
If hemiplegia occurs and urine is black like indigo water, the disease is deep. Use only two doses of this medicine. If eyebrows, beard, and hair fall out, they will grow back gradually. Strictly avoid eating mutton, chicken, goose, pig head/hooves, carp, and raw/cold foods. If one eats bland food, full recovery will occur within 100 days. If the leprosy ulcerates, wash only with decoction of Dafengzi shells. In spring and summer, use Shigao and Huashi according to the formula; in autumn and winter, reduce these two ingredients by half. On the Spring Equinox and Autumn Equinox, take one dose of Fangfeng Tongsheng San on an empty stomach. Purge 3-4 times, then replenish with congee. See the Stroke chapter for the formula.
One treating Li Feng with eyebrow and hair loss. Take Zaojiao Ci (Chinese Tamarind Thorn), steam and sun-dry nine times, grind into powder. Take 2 qian per dose, delivered with warm water. Long-term use regenerates eyebrows and hair, makes skin smooth and lustrous, and improves vision.
One treating severe大风 (Great Wind) disease, with dim eyes, falling eyebrows and hair, collapsed nasal bridge, and rotting skin sores. This medicine takes effect immediately. Take 3 jin of Zaojiao Ci, steam over charcoal fire, sun-dry, and grind into powder. Mix with strong Dahuang decoction and take. Within a few days, hair grows, skin becomes moist, eyes brighten, and all diseases improve.
One treating Da Ma Feng (Great Leprosy), also known as Great Wind Sore. Take 1 sheng of human maggots, place in a fine cloth bag, and rinse in fast-flowing water. Remove when clean. Decoct Mahuang, soak the bag with maggots for a long time, remove and sun-dry. Then soak in Gancao decoction, sun-dry. Then soak in Kushen decoction, sun-dry. Then soak in Tongbian (Child's Urine), sun-dry. Then add to Ginger and Congjie decoction, do not remove, boil in the pot until dry, then bake and grind into powder. For every 1 liang of maggot, add 2 qian of Shexiang and 3 qian of Chansu. Mix well, store in a porcelain jar. Take 1 qian per dose, delivered with Shixianhua decoction. (Shixianhua is white moss growing on mountain rocks, coin-shaped).
First bathe with Cang'er Cao decoction, then take the medicine. Effect seen in seven days. For robust constitutions, take once daily; for weak constitutions, take once every three days. Divine efficacy.