Stop smoking, exercise and it will eventually disappear. Diet: Remove diary products from your diet and add a few of these things: Garlic, Onion & Ginger Barley grass, Spinach & Kelp Alkaline...
Basically, yes.
When you smoke 21 cigarettes a day (1 pack) for one year, you will have accumulated 8 ounces of tar in your lungs.
If you are around someone who smokes (secondhand smoke) very...