after quitting smoking

After quitting smoking, how can you stop biting?
After've quit smoking, I have been itching more. Any suggestion out there on what to do to curb snack?
I hear that people quit when they take the habit of eating more. I wonder why? Perhaps if you play a trick on the brain doing something to keep your mouth in motion that would be useful. Chew gum or you can get a big bag of sunflower seeds and Munch in when you start to feel hungry or feel the need to snack.
Quitting Smoking: The Day After (HD Quality) – fhu.com