治血脉凝滞，筋络拘挛，肢节疼痛，行步艰难，活血化气第一品也。
玄胡索 当归 官桂
上等分为末，每服二钱，空心温酒调服。
治腰脚诸疾。
胡芦巴（四两重。二两用海金沙四两同炒，令二两用巴豆四两炒令赤色。海金沙者，即
俗名
伪。巴豆去壳，取完者用） 苍耳草（四两，焙干。俗名野茄叶，本草名 耳） 左缠藤（四两
，连叶焙干用）
上三味为末，以好生酒，煮面糊为丸如梧桐子大，用生酒吞下三四十丸。病在腰，半饥
服；病在膝脚，空心服。
膏药方∶清油一斤，将头发二两，煎至熔，却随意入甘草节、当归尾、黄连、巴豆、蓖
麻子
沸；入乳香末一两，用桃柳枝不住手搅，挑入水中滴成珠，不粘手则膏成矣。
又方∶麻油五两重，巴豆二十八粒，柳条二十八寸，以火煎候巴豆黑色，滤去滓，以谷
丹二
，瓦器盛之，候冷摊用。
治四时瘟疫方。诸云∶昔城中大疫，有白发老人，教一富人家，合施城中病者，皆愈。
其后疫鬼问其富人家，富人遂以实告鬼，相顾曰∶此老教三人矣。遂稽颡而退。
凡服此药，戒食荤腥酒肉，无不应效。又前元时，江西吉安太和县瘟疫大作，有医者，
视病
∶某医人也。神曰∶汝今医病用何药？答云∶随病冷热轻重用药治之。神曰∶不然，只一类
用香苏散好。医者归，明日遂如其言，试之皆效。医道大行，因获福利，终身敬祀其神，并
记于此。
香附子（炒，去毛） 紫苏叶（各四两） 陈皮（一两） 甘草（炙，一两）
上锉为粗末，每服三盏，水一盏，煎至七分，去滓，热服，不拘时，日三服。
Treats blood vessel stagnation, tendon and collateral spasm, pain in limbs and joints, and difficulty in walking; it is the premier formula for invigorating blood and transforming qi.
*Radix Corydalis* (Xuanhusuo), *Radix Angelicae Sinensis* (Danggui), *Cortex Cinnamomi Cassiae* (Guangui)
Grind the above ingredients into fine powder in equal proportions. Take two qian per dose, mixed with warm wine on an empty stomach.
Treats various diseases of the waist and legs.
*Semen Phaseoli* (Huluba, 葫芦巴) (four liang in weight. Two liang are stir-fried together with four liang of *Spore of Lygodii Japonici* (Haijinsha, 海金沙) until red; the other two liang are stir-fried with four liang of *Semen Crotonis Tiglii* (Badou, 巴豆) until red. Haijinsha is commonly known as 'Wei'; Badou is shelled, using only intact seeds.) *Herba Xanthii* (Can'ercao, 苍耳草) (four liang, dried by roasting. Commonly known as Yeqieye, named 'Er' in Bencao.) *Caulis Polygoni Multiflori* (Zochanteng, 左缠藤) (four liang, dried by roasting with leaves.)
Grind the above three herbs into powder. Make pills the size of paulownia seeds using good raw wine and wheat flour paste. Swallow 30-40 pills with raw wine. If the disease is in the waist, take when half-hungry; if in the knees and feet, take on an empty stomach.
Plaster Formula: One jin of refined oil. Fry two liang of hair until melted. Then add *Rhizoma Glycyrrhizae* (Ganjie, 甘草节), *Radix Angelicae Sinensis caulis* (Dangguiwei, 当归尾), *Radix Coptidis* (Huanglian, 黄连), *Semen Crotonis Tiglii* (Badou, 巴豆), and *Semen Ricini* (Bimazi, 蓖麻子) to boil. Add one liang of *Resina Olibani* (Ruxiang, 乳香) powder. Stir constantly with peach or willow branches. Drop into water to form beads that do not stick to hands; the plaster is ready.
Another Formula: Five liang of sesame oil, twenty-eight grains of *Semen Crotonis Tiglii* (Badou, 巴豆), twenty-eight cun of willow twigs. Fry over fire until Badou turns black. Filter out dregs. Mix with [missing text] Gu Dan. Store in a clay vessel. Spread when cool.
Formula for treating epidemics in all seasons. Various accounts state: In the past, a great epidemic broke out in the city. A white-haired old man taught a wealthy family how to prepare medicine to distribute to the sick in the city, and all recovered. Later, the plague ghost asked the wealthy family about this. The family told the truth. The ghosts looked at each other and said, "This old man has already taught three people." They bowed and retreated.
When taking this medicine, avoid meat, fish, alcohol, and rich foods; it is invariably effective. During the Yuan Dynasty, a severe epidemic occurred in Taihe County, Ji'an City, Jiangxi Province. A physician was consulted. He said, "I am a doctor." A spirit asked, "What medicine do you use to treat diseases?" He replied, "I use medicine according to the coldness, heat, severity, and lightness of the disease." The spirit said, "No, simply use Xiangsu San." The physician returned home and followed this advice the next day; all cases were effective. Medical practice flourished, bringing benefits. He worshipped the spirit for life and recorded this here.
*Rhizoma Cyperi Rotundi* (Xiangfuzi, 香附子) (stir-fried, remove hairs) *Folium Perillae* (Zisuye, 紫苏叶) (each four liang) *Pericarpium Citri Reticulatae* (Chenpi, 陈皮) (one liang) *Radix Glycyrrhizae Uralensis* (Gancao, 甘草) (roasted, one liang)
Cut into coarse pieces. Take three zhan per dose. Add one zhan of water. Decoct until reduced to seven-tenths. Filter out dregs. Take hot, at any time, three times a day.