I am so very grateful for echinacea. Specifically the e. angustifolia that my husband grew. We dried the roots and make our own capsules as needed.
Lately I've needed.
It's very good for taking out a cold and the like.
While I am in no way offering medical advice I have found that for me it works well. I still have a cold, but it would have been worse.
I hit it with echinacea, cayenne (filled my own capsules) and some commercial garlic capsules that I had around.
I have to be careful with garlic as one of the things it does is make blood platelets slippery. I already take low dose ASA and ginkgo biloba so it's best I watch what I take.
I'm grateful these things exist, that they work, and that I know about them. It makes having a cold almost palatable.
NB The medicinal part of e. angustifolia, as I understand it, is the root.