Many of Echinacea’s chemical constituents are powerful immune system stimulants that can provide significant therapeutic value. How does Echinacea help with colds? The University of Connecticut performed a meta-analysis study that determined that Echinacea cuts the chances of catching a common cold by 58%. It also reduces the duration of the common cold by almost one-and-a-half days. Craig Coleman, Assistant Professor of Pharmacy Practice and lead author of the study, added that, “The take home message from our study is that Echinacea does indeed have powerful cold prevention and cold treatment benefits.” It can be used as one of several effective natural cold remedies.