Sinus Infection – Is Sinusitis Contagious? Risk & Treatment

Sinus Infection – Is Sinusitis Contagious? Risk & Treatment

These four pairs of sinuses have made of mucus-secreting cells, epithelial cells, and immune cells. Sinus infection is nasal congestion filled with germs, the fluid that further block the air passage. This blockage leads to further infection. It is an inflammation or swelling of the nasal passage.