Hi emonon,
well...My mother used to give me this stuff she called "chinese linament" that smelled really horrible and looked like a really dark laquer.
This was to help reduce aches in the muscles.
It didn't really do squat.
Then she used to give me this really gross tea when I was sick.
Turns out that liquids of any kind when you're sick flush out your system.
I'm chinese, and I stay away from the stuff. A lot of it you'll find in "health food stores" and the like but they never have disclaimers on them...A lot of the "herbal remedies" can actually interfere with your western medicines and make you a lot worse. My mother in law tried something called "dong quai" and she took it in addition to pills prescribed by western doctors. If her one doctor wasn't so persistent in her to stop taking the dq, she would have had cardiac arrest.
The one golden rule I go by: if it ain't certified by the fda, it ain't going in my body.
Hope this helps. I'm sure there are lots of other asian people out there who swear by the stuff, but...Well, i'm listening...