Duration
The duration of the bad breath through the stomach depends on the cause of the bad breath. If the bad breath is due to heartburn, a change in diet and lifestyle can cause the bad breath to disappear after a short time. If there is an inflammation of the stomach lining (gastritis), medical measures may be taken in addition to a change in diet.
In this case it may take several weeks until the bad breath has disappeared. In general, much of the duration of bad breath through the stomach can be reduced by a change in diet or habits.
