I know that I am missing part of this, so anyone feel free to add to it at any point, eh?
Nicotine causes the brain to be flooded with seratonin. There are receptors that take seratonin and do the lovely things with it that seratonin does. Well, because there is so much of it, many of the receptors shut down. Then when you quit smoking your seratonin production goes back to normal but you don't have many receptors left to take it and do lovely things with it. This is why you're crabby and can't sleep.
The receptors do open back up, but it takes time. The act of rewarding yourself helps them along! It's why we all push it so much.
I don't know anything about that herb, so I can't comment on it. I took 5 HTP from the health food store sometimes - which is the thing that is produced to produce seratonin.
As far as detoxing goes - try your best to get lots of fruits and vegies - especially vitamin A and Vitamin C ones and all smokers are low on Vitamin A to begin with. Crucifers (brussels sprouts, brocholli, couliflour, greens) are known to make the liver produce enzimes that carry cigarette toxins out of the body.
Drink lots and lots of ice water! It helps a LOT. Put a wedge of lemon in it here and there and it will help even more.
[B]My Milage:[/B]
[B]My Quit Date: [/B]7/17/2006
[B]Smoke-Free Days:[/B] 590
[B]Cigarettes Not Smoked:[/B] 44,250
[B]Amount Saved:[/B] $11,062.50
[B]Life Gained:[/B]
[B]Days:[/B] 52 [B]Hrs:[/B] 17 [B]Mins:[/B] 2 [B]Seconds:[/B] 0