细辛为马兜铃科植物细辛的全草,辛温,入肺、肾二经,功能祛风、散寒、行水、开窍,主治风冷头痛、鼻渊、齿痛、痰饮咳逆、风湿痹痛等症,尤其对于风寒外束之头痛、鼻塞及寒饮阻肺之咳嗽痰多者,用之最为有效.笔者临证多年,仔细揣摸研究细辛的临床功用,见其更有较好的明目、利咽、解疮毒之作用,经反复验证,每收奇效. Asarum is Aristolochiaceae Asarum’s whole plant, Xin Wen, into the lungs, kidney two classics, function hurricane, cold, water, resuscitation, indications of wind-cold headache, nasal bleeding, toothache, drinking cough Inverse, rheumatism, etc., especially for the cold outside the beam of headache, nasal congestion and cold drink blocking the lungs of cough, use the most effective. The author clinical prosthesis for many years, carefully study the clinical function of Asarum, see it more Have a good eyesight, pharynx, anti-hemorrhoids effect, after repeated verification, each received special effects.