Well, you can believe what you may, of course. But at least no one is dying from it...you can't say that about very many modern medicines, even Tylenol kills a lot of people.

Probably half of the world's peoples have had good effects from ginseng, whether that is "placebo" (as scientist and western doctors might say...) or based on chemical compounds that haven't been extracted yet (they are still extracting them from another plant medicine in use for over 5000 years called Cannabis...scientists have no idea about most of the 500 or so in that plant either), or based on some kind of spiritual element as is said about Ayahuasca and Peyote is really all besides the point. Ginseng has cured many people and kept many more from ever getting ill in the first place.

Explain it however you want.

I have family who work in TCM, and I think their guidance is pretty decent: if it's serious go see a doctor, get medicine, get better. If it's not serious (you're okay with living with it), go with the herbs, because the downsides are much smaller (and the effect sizes too), but that's okay because it's not a serious disease.

But I must stress this: if you have cancer, don't eat herbs and pray, go to a damn doctor.