There are some excellent natural products available which can be used instead of conventional medications for those who prefer the natural approach.
First you need a natural product to reduce your addiction to nicotine, then with a natural product to clear the tar out of your lungs. Once you enjoy breathing pure clear air, you will not want to go back to smoking again.
Smoking Withdrawal by Natra-bio is a combination of homeopathic medicines designed to reduce your cravings for nicotine. These medicines are safe, effective, non-habit-forming, and approved by the FDA as over-the-counter drugs. They do not contain any nicotine. This blend will set you back all of $5 and is definitely worth a try.
Then use Smokers’ Cleanse by Renew Life to clear the tar out of your lungs so you can breathe again. And of course follow the excellent lifestyle strategies in the previous answers.
If these methods don’t work, try hypnosis. It has worked for a lot of people I know.