What Are Nasal Polyps | Chronic Sinusitis

If you have inflammation in your nose or nasal cavities that lasts 12 weeks or longer, you may have nasal polyps. These growths in the lining of sinuses or nasal passages are often caused by chronic sinusitis, chronic hay fever, asthma, or an allergy to a medicine like aspirin or ibuprofen. Don’t worry—nasal polyps aren’t […]