Nasal Congestion Warning Signs
Notify your doctor if you have nasal or sinus congestion and any of the following:
Continue to Nasal Congestion Underlying Cause
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- Corey JP, Houser SM, Ng BA. Nasal congestion: a review of its etiology, evaluation, and treatment. Ear Nose Throat J. 2000 Sep;79(9):690-3, 696, 698. 
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