Confinement Herbs Bei QiAstragalus (黄芪, 北芪) is also known as Bei Qi or Huang Qi for Chinese TCM herbs. Astragalus is sweet and mildly warm. Commonly used ingredient for post natal confinement. The herb nourish the spleen and supplement the vital energy. Helps to promotes urination, relieve water retention, retard aging and enhance immune system.