Sinusitis / Hayfever / Allergic Rhinitis
An inflammation or infection in the paranasal sinuses. The most common inciting agent of sinusitis is a viral upper respiratory infection, although bacteria, fungi, and allergic reactions may also be responsible. Any factor that creates edema of the nasal tissues resulting in obstruction and the lack of proper drainage of the area will often lead to sinus infection. As the obstruction continues,...
