I have Crohn's Disease and have been doing fairly well of late. My only significant symptom is increased gas and bloating associated with mild diarrhea. My doctor feels that I might have bacterial overgrowth. What is this and what is the treatment?

The gastrointestinal tract is not sterile. There are large amounts of bacteria present normally. This is known as the bacterial flora. There is both good and bad bacteria present in the gastrointestinal tract. If there is an excess of bad bacteria,...