What are the Symptoms and Causes of Sinus Infection?
Sinusitis, also known as a sinus infection, is a condition that occurs when the nasal passages become inflamed and swollen. It can be caused by allergies, a cold, or a bacterial infection. Sinusitis is characterized by symptoms such as nasal congestion, facial pain, and postnasal drip. If left untreated, sinusitis can lead to more severe…