一名螂蛆。川广最多。江南亦有。背丝腹黄。头足赤而大者为公。黄细者为母。用公
用母。故名。七八月采之。味辛。气温。有毒。足厥阴经药也。主疠风破伤风。小儿惊痫
搐。脐风口噤。治心腹寒热。积聚胀满症瘕。痫证谵妄。去恶血。堕胎。散蛊毒。制诸蛇
尸疰恶气。杀三虫。敷便毒痔漏瘰 溃疮。及蝮蛇螫伤。禀火金之气以生。辛温属阳之
也。（仲淳）行而疾者。惟风与蛇。蜈蚣能制蛇。故亦能截风。（濒湖）蜈蚣有毒。惟风气
烈者。可以当之。风气暴烈。非蜈蚣擒截。亦不易止。但贵药病相当耳。（通剂解法。载修
治前。）得牛角 象牙末猪悬蹄刺 皮蛀竹屑。能去通肠漏管。小儿口噤不乳。东走蜈蚣。
去足炙研。用猪乳二合调半钱。分三四服。温灌之。锁喉瘴。项大肿痛连喉。此岭南外蛇瘴
也。用赤足蜈蚣一二节研细。水下即愈。丹毒瘤肿。蜈蚣一条。白矾一皂子大。雷丸一个。
百部二钱。研末。醋调敷之。瘰 溃疮。茶蜈蚣二味。炙至香熟。捣筛为末。先以甘草汤洗
净。敷之。便毒初起。黄脚蜈蚣一条。瓦焙。存性为末。酒调服。取汗即散。
〔论〕 蜈蚣性能制蛇。夫蛇应于巳。禀巽风之用。而合于六阳盛气者。兹物能制之。
以其
风木还
应昴。
蜈蚣者
巽。而
相媾则
风脐风
而阳不化
截风。既
之胥治
乃风火
之。正
缪氏言小儿慢惊。口噤不言。大人温疟非瘴气所发。与便毒成脓将溃。咸在所忌。服蜈
蚣过
〔辨治〕 千足虫真相似。只是头上有白肉。面并嘴尖。可别。若误用并把着腥臭气。
入顶
蜈蚣，又名螂蛆。四川、广东地区产量最多，江南地区也有出产。其背部呈丝状纹理，腹部为黄色。头部和足部红色且粗大的为雄性，颜色黄细的为雌性。药用时区分公母，因此得名。一般在农历七八月采集。味道辛，性温，有毒。它是归入足厥阴肝经的药物。主要治疗麻风病、破伤风、小儿惊痫抽搐、脐风口噤（新生儿因受风导致的牙关紧闭）、心腹部的寒热交替症状、积聚胀满及症瘕（腹内结块）等病症。还能治疗癫痫发作时的胡言乱语，去除恶血，导致堕胎，消散蛊毒，制约各种蛇类、尸疰（一种慢性消耗性疾病）及恶气，杀灭体内寄生虫。外敷可用于治疗便毒（腹股沟淋巴结炎）、痔漏、瘰疬溃烂疮疡，以及被蝮蛇咬伤。
蜈蚣禀受火和金之气而生，味辛性温，属于阳性的药物。（缪希雍/仲淳认为：行动迅速的，只有风和蛇。蜈蚣能制服蛇，所以也能截断风邪。）（李时珍/濒湖认为：蜈蚣有毒，只有风气猛烈者才能用它来对抗。风气暴烈，若非蜈蚣擒截，也不容易停止。但关键在于药物与病情相当即可。（通剂解法记载在修治部分之前。）
若配合牛角、象牙末、猪悬蹄刺皮、蛀竹屑使用，能去除肠漏管。对于小儿口噤不能吸乳，取向东走的蜈蚣，去掉足部后炙烤研末，用猪乳汁二合调和半钱药粉，分三四次服用，温热灌服。
对于锁喉瘴（颈部肿大疼痛牵连喉咙，这是岭南地区的外蛇瘴气），用赤足蜈蚣一至两节研细，用水送下即愈。
对于丹毒瘤肿，用蜈蚣一条，白矾如皂角子大小，雷丸一个，百部二钱，研成粉末，用醋调匀后外敷。
对于瘰疬溃烂疮疡，用茶色蜈蚣一味药，炙至香熟，捣碎过筛为末。先用甘草汤洗净患处，再敷上药末。
对于便毒初起，用黄脚蜈蚣一条，在瓦片上焙干，保留药性，研为末，用酒调服，出汗后即可消散。
〔论〕 蜈蚣的性能能够制服蛇。蛇对应地支中的巳，禀受巽卦风的作用，并与六阳盛气相合。此物能制服它，是因为蜈蚣也属巽卦，风木相应于昴宿。风与火相互媾和，阳气不化，正是风火之邪，所以需要截断风邪来治疗。
缪氏指出，小儿慢惊风，口噤不言；大人温疟非由瘴气引发；以及便毒成脓即将溃破时，都在禁忌之列。蜈蚣服用过量……
〔辨治〕 千足虫与蜈蚣非常相似，只是头上有白肉，面部和嘴巴尖细，可以辨别。如果误用并接触到腥臭气味，会进入头顶……
*Wugong* (Scolopendra), also known as *Langqu*. It is most abundant in Sichuan and Guangdong, and also found in the Jiangnan region. Its back has a silken texture, and its abdomen is yellow. Those with red heads and large legs are male (*Gong*), while those that are yellow and slender are female (*Mu*). The distinction between male and female for medicinal use gives rise to its name. It is harvested in the seventh and eighth lunar months. It tastes pungent (*Xin*), is warm in nature, and is toxic. It is a herb entering the Foot Jueyin Liver Meridian. It primarily treats leprosy (*Lifeng*), tetanus (*Poshangfeng*), pediatric convulsions and spasms due to fright and epilepsy (*Xiao'er Jingxian Chu*), umbilical wind with jaw lock (*Qikou Jin*), alternating cold and heat in the heart and abdomen, accumulation and distension, and masses (*Zhijia*). It also treats delirium during epileptic seizures, removes bad blood, induces abortion, dissipates gu poison, counters various snakes, corpse-wandering pathogens (*Shizhu*), and malignant qi, and kills three types of intestinal parasites. Applied externally, it treats buboes (*Biandu*), hemorrhoidal fistulas, scrofula with ulceration, and bites from pit vipers.
It is born bearing the Qi of Fire and Metal; pungent and warm, it belongs to Yang. (Zhongchun [Miao Xiyong] stated: What moves swiftly are only wind and snakes. Since Scolopendra can subdue snakes, it can also intercept wind.) (Binhu [Li Shizhen] stated: Scolopendra is toxic; only when the pathogenic wind is fierce can it be countered by this herb. When wind and pathogenic factors are violent, they are not easily stopped unless intercepted by Scolopendra. However, the key lies in the appropriateness of the medicine to the disease. (The method for general agents is recorded before the processing section.)
When combined with horn of buffalo, powder of ivory,刺 (thorns) from pig's hanging hoof skin, and shavings from bamboo eaten by insects, it can eliminate intestinal fistulas. For pediatric jaw lock preventing suckling, take a Scolopendra moving eastward, remove the legs, roast, and grind into powder. Mix half a qian of powder with two he of pig milk, divide into three or four doses, and administer warm.
For Suohou Zhang (Lock-throat miasma, characterized by swelling and pain in the neck extending to the throat, which is an external snake miasma in Lingnan), grind one or two segments of red-legged Scolopendra finely and swallow with water for immediate cure.
For erysipelas and tumor swelling, use one Scolopendra, a piece of alum the size of a soap pod, one Leiwan (Polyporus), and two qian of Bai Bu (Stemona Root). Grind into powder, mix with vinegar, and apply externally.
For scrofula with ulceration, use "Cha Wugong" (Tea-colored Scolopendra). Roast until fragrant, crush, and sieve into powder. First wash the area clean with Licorice Decoction, then apply the powder.
For early-stage buboes, use one yellow-legged Scolopendra, bake on a tile until the substance remains but moisture is gone, grind into powder, mix with wine, and ingest. Sweating will cause the swelling to dissipate.
[Discussion] The nature of Scolopendra allows it to subdue snakes. Snakes correspond to Si (the sixth Earthly Branch), bear the function of Xun (Wind in Bagua), and combine with the vigorous Qi of the Six Yang meridians. This creature subdues them because Scolopendra also corresponds to Xun, and Wind-Wood corresponds to Mao. Wind and Fire interact, causing Yang Qi to fail to transform; thus, intercepting wind is necessary to treat these conditions.
Mr. Miao pointed out that pediatric slow convulsion with jaw lock and silence, adult warm malaria not caused by miasma, and buboes that have formed pus and are about to ulcerate are all contraindications for taking Scolopendra. Overconsumption of Scolopendra...
[Differentiation and Treatment] The thousand-legger (millipede) is very similar to Scolopendra, distinguished only by the white flesh on its head and its sharp face and mouth. If mistakenly used and exposed to its fishy odor, it may enter the crown of the head...