当归四逆汤系仲景经方,中医以此方为治疗手足寒冷,疼痛拘挛或冻疮等的主要方剂。它的功用是温经祛寒,养血通脉。但内服治疗冻疮非数剂所能见效,笔者多年来将本方内服改为外用,均获得满意疗效,多数病人仅用一剂即愈。兹介绍于下。一:处方:当归五钱,赤芍五钱,细辛三钱,通革三钱,甘草三钱,大枣十枚。二、用法:上药共用水煎半脸盆,先以热气熏蒸患部,同时用布盖足上或手上,勿使汤气外泄,使能持久熏蒸,俟汤稍凉时即将患处浸洗,共约三十分钟之久。每天1～2次。药汤可再煎沸,如法连用4～5次。如系冻疮严重,溃后流脓水者,则用:当归二两, Angelica Sinang Tang Zhongjing Jingfang, a traditional Chinese medicine, is the main prescription for the treatment of cold hands and feet, pain, or frostbite. Its function is warming the cold, nourishing the blood. However, oral administration of non-invasive chilblains can be effective. The author has changed his oral administration to external use for many years and has achieved satisfactory results. Most patients only use one dose of Jiyu. It is introduced below. One: Prescription: Angelica five money, red peony five money, three money Asarum, three dollars through the leather, licorice three money, jujube ten. Second, usage: on the medicine to share the water to cook half the basin, first fumigation with the hot gas affected area, while covering the foot or hand with a cloth, do not make the soup gas leak, to enable long-lasting fumigation, when the soup is slightly cold when the affected area is dipping A total of about thirty minutes. 1 or 2 times a day. The medicine soup can be boiled again, such as using 4 to 5 times. If it is serious frostbite, after the collapse of pus, use: Angelica two,