The price of Cynanchum is roughly around $9-$27 a pound, with variations in the exact price due to a variety of factors. Please refer to the price in your local pharmacy. Cang Er Zi has the efficacy of dispersing wind-cold (dispersing wind-cold evil qi in the body), clearing nasal orifices, dispelling wind-dampness and relieving pain. In clinical practice, it can be paired with Fangfeng and Angelica dahurica for the treatment of wind-cold flu. Compound with Xinyi, used for the treatment of nasal abyss (mainly manifested as nasal mucus obscene, the amount of wipe unclean); with Qiangwu, used for the treatment of wind-dampness paralysis (wind, cold and dampness in the body leading to pain and activity limitation of the body of the disease). The price of this medicine is about 9-27 yuan a catty, due to different geographical areas, manufacturers and other factors, the specific price is also somewhat different. Patients with blood deficiency headache (headache due to loss of moistening and nourishment by blood deficiency) should not use this medicine. Patients who need to use the drug should do so under the guidance of a doctor and should not use the drug without authorization.