Aucklandia Lappa Decne. is a commonly used traditional Chinese medicine with dry roots. Yunmuxiang is warm in nature, pungent and bitter in taste. It can return to spleen, stomach, large intestine, triple energizer and gallbladder meridian. It has the effects of invigorating stomach, relieving distension, regulating qi, relieving depression, relieving pain and stabilizing fetus.

Aplotaxis auriculata is a kind of Qi regulating medicine, which has the effects of promoting qi to relieve pain, invigorating spleen and eliminating food. The main functions of yunmuxiang are as follows:
1. Aplotaxis auriculata  can line spleen and stomach qi stagnation, is the line of Qi pain medicine, clinical treatment of spleen and stomach qi stagnation, epigastric pain, food less loose stool and so on.
2. Aplotaxis auriculata can also be used in the treatment of large intestine qi stagnation. It is clinically used in the treatment of damp heat diarrhea, diarrhea, food accumulation and qi stagnation, abdominal distension and pain.
3. Aplotaxis auriculata can soothe the liver and gallbladder, and has good clinical effect on jaundice, abdominal distension and so on.