Wu Yao is also known as Spicebush Root. The acrid and warm herb has been used in TCM  as   increased metabolism, antibiotic, anti-viral agent andto harmonize peristalsis of digestive tract, release intestinal gas, etc., as it moves Qi, warms the Kidneys. calms pain, etc. by enhancing the functions of lung, spleen, kidney and bladder.channels. …