Ear-Nose and Throat Doctor (ENT) Questions Sinusitis

Could a sinus infection cause bad breath?

I usually get a sinus infection every year. I have also observed every time I am down with a sinus infection I have bad breath. Are the two connected? If so, why?

6 Answers

Yes it is one cause

Yes, a sinusitis can cause bad breath. The postnasal drainage down the back of the throat is the cause.

Dr. D
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Sinus inflammatory nasal congestion may increase the degree of nasal and sinus mucus. This may tend to dry out and tagged a causing some thickened secretions in the posterior oral cavity resulting in halitosis. Using topical nasal saline irrigation techniques will help reduce that frequency and improve the symptoms of the halitosis.
Yes they are related because the post-nasal drainage of sinus infection is malodorous.
One of the leading causes of halitosis is sinusitis. Bacterial infections produce swelling and pus and those two produce bad odor.
Could be. Probably exhaling odors through nose. Bad breath frequently related to dietary intake, e.g. onions, garlic, etc., poor dental care