"The epithelial cells lining the nasal and sinus cavities play an important role as first responders of the immune system," he says. "But when they are distracted fighting non-existent parasites, they ...

Respiratory infections like the common cold often start with a stuffy nose, and this minor ailment is sometimes followed by pain and tenderness around the cheeks, eyes and forehead — a telltale ...

Oestrus ovis, a cosmopolitan dipteran parasite commonly known as the sheep nose botfly, is responsible for oestrosis in small ruminants and ophthalmomyiasis in humans. In sheep and goats, the larvae ...

Sinus tumors develop in your nasal cavity and in the open spaces around your nose, which are called the paranasal sinus cavities. They’re the same areas where you often feel pain and pressure when you ...