当归四逆汤是张仲景《伤寒论》中为厥阴寒证所制之方 ,由当归、桂枝、芍药、细辛、甘草、通草、大枣组成 ,具有温经散寒、养血通脉之功 ,凡寒邪阻滞经脉、血脉不畅而致手足厥冷、四肢冷痛、脉细弱或沉伏等症用之均效。现代常用于血栓闭塞性脉管炎、雷诺氏病及冻疮 ,亦用于溃疡 Angelica Sini decoction is a prescription made by Zhang Zhongjing’s “Treatise on Febrile Diseases,” which consists of Angelica sinensis, cassia twig, peony, Asarum, licorice, Tongcao and jujube. It has a warm, cold, nourishing and nourishing veins. The power, where the cold evil blocking the meridians, poor blood flow due to hand, foot and foot cold, limbs, cold pain, weak pulse or Shen Fu embolism with the efficiency. Modern used in thromboangiitis obliterans, Raynaud’s disease and frostbite, also used in ulcers