大风病是受得天地间杀物之气，（已见《医要》）治法∶在上者醉
仙散，在下者通天再造散，出《三因》方中，后用通神散，即防风通圣散。仍用三棱针委中出血。不能禁口绝房劳者
不治。醉仙散（已见《医要》）须量大小、虚实加减与之。证重而急者，须先以再造散下之，候补养得还，复与此药。
吃服此药，须断盐、酱、醋、诸般鱼肉、椒料、果子、煨烧炙爆等物，止可吃淡粥，及煮熟时菜，亦须淡食，如茄不
可食，惟乌梢蛇、菜花蛇，可以淡酒煮食之，以助药力。一本云∶醉仙散之功固至矣，然必以银粉为使。盖银粉乃是
下膈通大肠之要剂，所以用其驱诸药入阳明经，开其风热怫郁痞膈，遂出恶气臭秽之毒，杀所生之虫，循经上行至齿，
嫩薄之分，而出其臭毒之涎水。服此药，若有伤齿，则以黄连末揩之。或先固济，以解银粉之毒。通天再造散，用川锦
纹大黄一两，炮；独生皂角刺一两半，炮，须经年黑大者，上为细末，每服二钱，临夜冷酒调服。以净桶候泻虫，如虫
口黑色，乃是多年虫；口赤色，乃是近年者。至数日又进一服，直候无虫方绝根也。一本云∶先生言通天再造散中，更
有郁金半两，生用；白牵牛六钱，半生半炒。治麻风方∶四物汤加羌活、防风、陈皮、甘草。又方∶大黄、黄芩、雄
黄三味，上为末，用樟树叶浓煎汤，入前药蒸洗。治麻风脉大而虚者，苍耳、牛蒡，酒蒸各三两；黄精、浮萍一两；
苦参七钱半。上末之，乌蛇肉酒煮，如无蛇，用乌鲤鱼亦可，为丸服之，候脉实，却用通天再造散取虫。治疠风
方∶苍耳、叶浮萍、鼠粘子，豆淋酒炒，各等分，上为末，豆淋酒下。一方有蛇肉。黄精丸∶苍耳、叶浮萍、鼠粘
子，各等分，炒。蛇肉减半，酒浸去皮骨，秤黄精倍前，苍耳等三味，生捣。以苍耳杂捣，焙干，上末之面丸。身上
虚痒，血不荣肌腠，所以痒也。四物汤加黄芩、调浮萍末。
治遍身痒，以凌霄花一钱为末，酒调。一本云∶服通天再造散于日未出时，面东，以无灰酒下，尽量为度。轻者止
利，如鱼肠臭秽之物，忌毒半月，但食稀粥软饭，渐生眉毛发皮肤如常矣。甚者不过三两次，须慎加将理，不可
妄有劳动，及终身不得食牛、马、驴、骡等肉，犯者死不救。
大风病（麻风病）是感受天地间具有杀伤力的邪气所致。（此观点已见于《医要》一书）。治疗方法：病位在上部的，使用醉仙散；病位在下部的，使用通天再造散，该方出自《三因极一病证方论》，之后再用通神散，即防风通圣散。同时配合用三棱针在委中穴放血。如果患者不能节制口腹之欲或禁止房事劳损的，属于不治之症。
醉仙散（已见于《医要》）必须根据患者体型大小、体质虚实进行加减后给予服用。病情严重且急迫的，必须先使用再造散攻下排毒，待身体补养恢复后，再给予此药。服用这些药物期间，必须断绝盐、酱、醋、各种鱼肉、花椒等辛辣调料、水果以及煨、烧、炙、爆等烹饪方式的食物，只能吃淡粥和煮熟时蔬，饮食也要清淡。茄子不可食用，只有乌梢蛇、菜花蛇可以用淡酒煮食，以辅助药力。另一版本记载：醉仙散的疗效固然极高，但必须以银粉作为引经药。因为银粉是下行膈部、通达大肠的重要药剂，所以用它来引导诸药进入阳明经，开通风热郁结导致的痞满隔塞，从而排出恶臭秽浊的毒气，杀死体内滋生的虫体。药气循经上行至牙齿，作用于嫩薄之处，排出臭毒的涎水。服用此药若损伤牙齿，可用黄连末擦拭。或者预先固护脾胃以解银粉之毒。
通天再造散，使用川锦纹大黄一两（炮制），独生皂角刺一两半（炮制，必须是经过一年以上的黑色大者），以上两味研为细末，每次服用二钱，临睡前用冷酒调服。准备干净的桶等待排泄虫体，如果虫口呈黑色，说明是多年的老虫；如果虫口呈赤色，则是近年新生的虫。几天后再进服一次，直到确认没有虫体才算除根。另一版本记载：先生指出通天再造散中，还含有郁金半两（生用）、白牵牛六钱（半生半炒）。
治疗麻风的方剂：四物汤加入羌活、防风、陈皮、甘草。另一个方子：大黄、黄芩、雄黄三味药，研为末，用樟树叶浓煎汤，将前药放入药汤中蒸洗。治疗脉象大而虚的麻风患者，使用苍耳、牛蒡子各三两（酒蒸）；黄精、浮萍一两；苦参七钱半。以上研末，乌梢蛇肉用酒煮，如果没有蛇，用乌鲤鱼也可以，制成丸药服用，等到脉象变得实有力时，再用通天再造散攻取虫体。
治疗疠风（麻风）的方子：苍耳、叶浮萍、鼠粘子（牛蒡子），用豆淋酒炒，各等分，研为末，用豆淋酒送服。一方中加入蛇肉。黄精丸：苍耳、叶浮萍、鼠粘子各等分，炒制。蛇肉用量减半，酒浸后去皮骨，称量黄精加倍于前文用量，苍耳等三味药生捣。将苍耳与其他药混合捣碎，焙干，研为末，加面糊制成丸药。身上出现虚性瘙痒，是因为血液不能荣养肌肤腠理所致，因此产生瘙痒。用四物汤加入黄芩，调和浮萍末服用。
治疗遍身瘙痒，用凌霄花一钱研为末，用酒调服。另一版本记载：服用通天再造散要在日出之前，面向东方，用无灰酒送服，以喝到最大限度为度。病情轻的，仅排出像鱼肠一样臭秽的物质，忌食有毒食物半个月，只吃稀粥软饭，眉毛头发皮肤会逐渐恢复正常。病情严重的，不过两三次即可，必须谨慎调养，不可妄自劳累，并且终身不得食用牛、马、驴、骡等肉类，触犯者死，无法救治。
The Great Wind disease (Leprosy) is caused by contracting the killing qi of heaven and earth between the world. (This view has already appeared in *Yi Yao*). Treatment methods: For lesions located above, use Zuixian San; for those located below, use Tongtian Zaizao San, which comes from the *San Yin Fang* formula. Subsequently, use Tongshen San, which is Fangfeng Tongsheng San. Also use a three-edged needle to bleed at Weizhong (BL40). If the patient cannot abstain from food and drink or sexual indulgence, it is incurable.
Zuixian San (already seen in *Yi Yao*) must be administered with dosage adjustments based on the patient's size and deficiency/excess constitution. For severe and acute cases, one must first use Zaizao San to purge, wait for the body to recover through nourishment, and then administer this medicine. When taking these medicines, one must cut off salt, soy sauce, vinegar, all kinds of fish and meat, pepper and other spices, fruits, and foods prepared by roasting, baking, grilling, or frying. One can only eat plain congee and boiled seasonal vegetables, and the diet must be bland. Eggplant should not be eaten. Only Zhaoshe (Zaocys, 乌梢蛇) and Caihuashe (Dinodon rufozonatum, 菜花蛇) can be boiled and eaten with light wine to assist the medicinal power. Another version states: The efficacy of Zuixian San is indeed supreme, but it must use Yinfen (Calomel, 银粉) as an guiding agent. Because Yinfen is a crucial agent for descending through the diaphragm and unblocking the large intestine, it is used to drive other medicines into the Yangming Meridian, opening the wind-heat stagnation causing fullness and obstruction, thereby expelling foul and turbid toxic qi, killing the worms generated therein. The medicinal qi ascends along the meridian to the teeth, acting on the tender and thin parts, and expels foul and toxic saliva. If taking this medicine damages the teeth, one can wipe them with Huanglian powder (Coptidis Rhizoma, 黄连末). Alternatively, protect the stomach beforehand to resolve the toxicity of Yinfen.
Tongtian Zaizao San uses Chuanjinwen Dahuang (Rhei Radix et Rhizoma, 川锦纹大黄) one liang (processed), and Dusheng Zaojiaoci (Gleditsiae Sinensis Spina, 独生皂角刺) one and a half liang (processed, must be black and large after one year). Grind the above into fine powder. Take two qian each time, mixed with cold wine before going to bed at night. Prepare a clean bucket to await the excretion of worms. If the worm mouth is black, it is a worm that has existed for many years; if the worm mouth is red, it is a recent one. Administer another dose after a few days, until no worms are found, signifying the root is eradicated. Another version states: The Master said that Tongtian Zaizao San also contains Yujin (Curcumae Radix, 郁金) half a liang (raw), and Baiqianniu (Pharbitidis Semen, 白牵牛) six qian (half raw, half stir-fried).
Formula for treating Leprosy: Siwu Tang (Four Substances Decoction) added with Qianghuo (Notopterygii Rhizoma et Radix, 羌活), Fangfeng (Saposhnikoviae Radix, 防风), Chenpi (Citri Reticulatae Pericarpium, 陈皮), and Gancao (Glycyrrhizae Radix et Rhizoma, 甘草). Another formula: Dahuang (Rhei Radix et Rhizoma, 大黄), Huangqin (Scutellariae Radix, 黄芩), and Xionghuang (Realgar, 雄黄). Grind the three ingredients into powder. Use a strong decoction of Zhangshuye (Cinnamomi Camphorae Folium, 樟树叶) to steam and wash with the aforementioned medicine. For leprosy patients with a pulse that is large and deficient, use Cang'er (Xanthii Fructus, 苍耳) and Niubangzi (Arctii Fructus, 牛蒡子), each three liang (wine-steamed); Huangjing (Polygonati Rhizoma, 黄精) and Fuping (Minturnae Herba, 浮萍) one liang; Kushen (Sophorae Flavescentis Radix, 苦参) seven and a half qian. Grind the above into powder. Boil Wushe Rou (Zaocys, 乌蛇肉) in wine; if snake is unavailable, use Wu Liyu (Cyprinus carpio, 乌鲤鱼). Form into pills and take. Wait until the pulse becomes solid, then use Tongtian Zaizao San to purge the worms.
Formula for treating Lifen (Leprosy): Cang'er (Xanthii Fructus, 苍耳), Ye Fuping (Minturnae Herba, 叶浮萍), and Shunianzi (Arctii Fructus, 鼠粘子), stir-fried with Doulinjiu (Bean-leavened Wine, 豆淋酒), equal parts. Grind into powder and take with Doulinjiu. One formula includes She Rou (Snake Meat, 蛇肉). Huangjing Wan (Polygonati Pill): Cang'er (Xanthii Fructus, 苍耳), Ye Fuping (Minturnae Herba, 叶浮萍), and Shunianzi (Arctii Fructus, 鼠粘子), equal parts, stir-fried. She Rou (Snake Meat, 蛇肉) is halved. Soak in wine, remove skin and bones. Weigh Huangjing (Polygonati Rhizoma, 黄精) double the previous amount. Cang'er and the other three ingredients are raw and pounded. Pound Cang'er together with others, dry by baking, grind into powder, add flour paste to form pills. Itchy sensation on the body is due to deficiency, where blood fails to nourish the muscle and interstices, hence the itching. Use Siwu Tang (Four Substances Decoction) added with Huangqin (Scutellariae Radix, 黄芩), mixed with Fuping powder (Minturnae Herba, 浮萍末).
To treat generalized itching, use Lingxiaohua (Lagerstroemiae Indicae Flos, 凌霄花) one qian ground into powder, mixed with wine. Another version states: Take Tongtian Zaizao San before sunrise, facing east, taken with Wuhuijiu (Unadulterated Wine, 无灰酒), to the maximum extent tolerated. For mild cases, only foul substances like fish intestines will be purged. Avoid toxic foods for half a month, eat only thin congee and soft rice. Eyebrows, hair, and skin will gradually return to normal. For severe cases, no more than two or three doses are needed. Careful management is required; do not engage in reckless labor. Furthermore, one must never consume beef, horse, donkey, or mule meat for life. Those who violate this prohibition will die and cannot be saved.