大艾草是艾叶苦燥辛散,能理气血、温经脉、逐寒湿、止冷痛,为妇科要药。用治脘腹冷痛,经寒不调,宫冷不孕等证,如艾附暖宫丸炒炭止血,可用治虚寒性月经过多,崩漏带下,妊娠胎漏,如胶艾汤。本品捣绒,制成艾条、艾柱,外灸能散寒止痛,温煦气血。煎汤外洗...