Pungent, bitter and warm
Heart, liver and spleen
1. To invigorate blood and promote qi circulation; 2. To stop pain
Pains due to qi and blood stagnation. Corydalis tuber (Yan Hu Suo ) is used with Sichuan chinaberry (Chuan Lian Zi ), Chinese angelica root (Dang Gui ), Chuan Xiong  rhizome (Chuanxiong), Frankincense (Ru Xiang ) and Myrrh (Mo Yao ).
Frying with vinegar enhances this herb ability to stop pain.