修然子《大风论》∶夫大风者，所犯异证多端，或因嗜欲无度，劳伤血气，或蓄太怒忧
愁惊
或手足破伤，引入风毒，或醉风豪雨寒水湿瘴侵入肌肤，当时感受，以至大风之患。病因，
以流注经络，传于脏腑，发于四肢，内外熏蒸，而成泡癣。
夫病之源有三证五死∶一种者水风，二种者传变，三种者自不调摄；五死者，一曰皮死
麻木
舌翻，以至声哑不能救治。一、风者，肺经受证，先落眉毛；二、风者，肝经受证，面起紫
泡；三、风者，肾经受证，脚底先穿；四、风者，脾经受证，遍身如癣；五风者，心经受证
，先损其目。
或有坟墓、居址、祖宗、父母、夫妻、家人等，递相传者，或在外不谨，粪坑、房室、
床铺
忍，欲求治之，不可得济，或一年半载而死者有之。
大凡感此疾者，宜早救疗则易痊，可当详审，区别治疗，或差则毫厘千里矣。奈明医达
士，
，
；欲求医治，不别居静室，断酒戒色，涤虑洗心，皈告神医，真诚告解。仍忌发风、动气、
荤腥、盐酱、生冷之物勿食，切须耐性宽心，然后可服众药，随意加减，修制丸散
，根据法服之，治无不痊。先用泻恶血丸药服饵，如脓溃烂，煎汤熏洗，旬日之内，皆是好肉
。旧有疮疾，渐消不发，耳鼻通气，皮肤觉快，眉须再生，颜色悦泽，安和五脏，其功效岂
能尽笔乎。方具如后∶
修然子在《大风论》中指出：所谓“大风”（麻风病），其表现出的证候多种多样。有的因为嗜欲无度，导致气血劳伤；有的因为积聚了过度的愤怒、忧愁或惊恐；有的因为手足皮肤破损，使风毒乘虚侵入；有的因为醉酒、淋雨、受寒、涉水或接触湿瘴之气，邪气侵入肌肤，当时感受邪气，最终导致患上了“大风”之疾。这种病的病因，在于邪气流注于经络，传变至脏腑，发作于四肢，内外熏蒸，从而形成水泡和癣疮。
该病的根源分为三种证型，预后不良者有五种死证：第一种是“水风”，第二种是病情“传变”扩散，第三种是患者自身不注重调养摄生；所谓的五种死证分别是：第一，“皮死”，表现为皮肤麻木、舌体翻转，直至声音嘶哑，无法救治；第二，“风入肺经”，肺经受邪，首先出现眉毛脱落；第三，“风入肝经”，肝经受邪，面部出现紫色水泡；第四，“风入肾经”，肾经受邪，脚底先出现溃烂穿孔；第五，“风入脾经”，脾经受邪，全身皮肤如同癣疮一般；第六，“风入心经”，心经受邪，首先损害眼睛。
此外，此病可能通过坟墓、居住地、祖先、父母、夫妻、家人等途径代代相传；或者因为在外生活不慎，接触粪坑、卧室、床铺等污秽之处而感染。若想要治愈它，往往难以奏效，有的人一年半载后便会死亡。
大凡感染此疾的人，应当尽早治疗则容易痊愈，必须详细审察，区别对待进行治疗，如果稍有差错，就会失之毫厘、谬以千里。无奈的是，即使是有明达医术的医生，若想求医治病，患者若不独居静室，不断绝酒色，洗涤杂念、净化心灵，向神医虔诚告解忏悔，也是无济于事的。同时必须忌食引发风邪、动气、荤腥、盐酱及生冷之物，务必保持耐心、心情宽畅，然后才可以服用各种药物，根据情况随意加减剂量，制作成丸剂或散剂，按照法度服用，这样治疗没有不痊愈的。先用“泻恶血丸”服用，如果脓液溃烂，则煎汤熏洗，十天半月之内，患处就会长出好肉。原有的疮疾会逐渐消退不再发作，耳鼻通气顺畅，皮肤感觉舒适，眉毛胡须重新生长，面色光泽悦目，五脏安和，其功效怎能用笔墨完全描述尽呢？具体方剂如下：
Xiu Ranzi, in "Treatise on Great Wind" (Da Feng Lun), states: The so-called "Great Wind" (Leprosy) presents with a wide variety of symptoms. Some cases arise from excessive desires, leading to exhaustion and injury of Qi and Blood; some result from accumulated anger, sorrow, or fright; some occur because breaks in the skin of the hands and feet allow Wind-Toxin to invade; others are caused by intoxication, exposure to wind and rain, cold, wading through water, or contact with damp miasma, where pathogenic factors invade the skin and muscles. Upon initial infection, this eventually leads to the affliction of "Great Wind." The etiology involves pathogens flowing into the meridians, transmitting to the Zang-Fu organs, manifesting in the four limbs, steaming internally and externally, thereby forming blisters and tinea-like lesions.
The origin of the disease is categorized into three types of syndromes, and there are five types of fatal outcomes: The first type is "Water Wind"; the second is "Transmission/Progression" of the disease; the third is failure of self-care and regulation. The five fatal outcomes are as follows: First, "Skin Death," characterized by numbness of the skin, eversion of the tongue, and eventual hoarseness, rendering it incurable. Second, "Wind invading the Lung Meridian," where the Lung Meridian is affected, initially causing the loss of eyebrows. Third, "Wind invading the Liver Meridian," where the Liver Meridian is affected, causing purple blisters to appear on the face. Fourth, "Wind invading the Kidney Meridian," where the Kidney Meridian is affected, causing perforation to begin on the soles of the feet. Fifth, "Wind invading the Spleen Meridian," where the Spleen Meridian is affected, causing the entire body to resemble tinea lesions. Sixth, "Wind invading the Heart Meridian," where the Heart Meridian is affected, initially damaging the eyes.
Furthermore, this disease may be transmitted generationally through tombs, residences, ancestors, parents, spouses, or family members; or it may be contracted due to carelessness outside, such as contact with cesspools, bedrooms, or beddings. If one seeks treatment, it is often difficult to achieve relief; some patients die within one and a half to two years.
Generally, those infected with this disease should seek early medical intervention for easier recovery. One must carefully examine and differentiate the treatment; otherwise, a slight error will lead to a disastrous outcome. Regrettably, even for skilled physicians, if the patient does not isolate themselves in a quiet room, abstain from alcohol and sexual activity, cleanse their mind and heart, and sincerely confess and repent to the divine healer, cure is unattainable. One must also avoid foods that trigger Wind, agitate Qi, or are greasy, salty, pungent, or raw/cold. It is essential to maintain patience and a broad-minded attitude before taking various medicines. Dosages can be adjusted freely, and preparations made into pills or powders according to standard methods. With adherence to these protocols, cures are assured. Initially, administer "Pills for Draining Evil Blood." If pus discharges and ulcers exist, decoctions should be used for fumigation and washing. Within ten days to a month, healthy flesh will regenerate. Existing sores will gradually subside and cease to flare up; nasal and ear passages will become clear; the skin will feel comfortable; eyebrows and beard will regrow; complexion will become lustrous; and the Five Zang Organs will harmonize. How can such efficacy be fully described in writing? The specific formulas are listed below: