Sinus: Your sinuses could be the source. Mild sinus infection is possible with only occasional bad taste or odor. Sneezing or bending over can be the trigger, making it noticeable.
Answered 2/23/2013
5.3k views
Sinus infection: Possible sinus infection. If so you need to be on antibiotics.
Answered 2/23/2013
5.3k views
Sinusitis: The likely cause is an infection in your sinuses. I would refer to an ent. Doctor for follow up if it persists. Antibiotics tend to fix the problem.
Answered 8/2/2013
5.3k views
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