Posted on June 4th, 2012 by
DEAR MAYO CLINIC: I've had a case of chronic postnasal drip for many years and as a result have very bad breath. Are the two related and if so, how? What can be done to treat bad breath due to postnasal drip? ANSWER: Postnasal drip usually isn't related to bad breath. Instead, bad breath most often results from the breakdown of food in your mouth, bacteria in the tissues of your mouth or tonsils, dental problems, dry mouth or, rarely, an underlying disease
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