Digestion in the duodenum mostly depends upon the actions of the pancreatic enzymes and bile. When the food is not digested properly the gut's microorganisms tend to ferment it with releasing a lot of gas and many toxic irritated substances.
Report Abuse. Depends where in the mouth and how many.About 3 hours is normal.If you try eating with a numb mouth you could bite off a part of your cheek or tongue as it has no feeling.So eat when it goes down. London NW3 Â· 7 years ago. Thumbs up.
The pain associated with burning mouth syndrome can last for several months or years. Other symptoms often reported with burning mouth syndrome include dry lips, a sore or dry mouth, tingling or numbness on the tip of the tongue or in the mouth and bitter or metallic changes in taste.