Before getting to know what are chronic sinusitis symptoms, and how to treat it so that you can get rid it forever, let me start by introducing what is sinus. Sinuses are actually the air-filled spaces located behind the bones of your face, which is lined with your nose. The mucous membrane in your sinuses is very effective in preventing dirt particles and viral/bacterial infection as their job is to keep your nasal passageways moist and clear. When the passage is blocked, the chance of viral/bacterial infection will be very high and might causes sinusitis. Sinus infection caused by bacterial infection will cause inflammation to your sinuses and nasal passages. [...]