e200921c_sity_of_Michigan_Health_System__Why
[Supplement] 1 Star Chinese Artichoke Refer to label instructions [Why] 
Traditional Chinese medicine practitioners use Chinese artichoke for colds and flu. Traditional Chinese Medicine practitioners use Chinese artichoke (Stachys sieboldii), a species similar to wood betony (Stachys betonica), for colds and flu.51 It is unknown whether wood betony would be useful for people with the common cold.
Common Cold/Sore Throat (Holistic) | University of Michigan Health System
Why