The sinuses are four hollow spaces on both sides of your face and head. They're connected by narrow channels that allow air and fluids to flow between your nose and throat. If you have inflammation in ...

Pain and pressure around your sinuses -- in your forehead, in your cheeks, behind and between your eyes, and above your nose Tenderness when you touch your face Pain that gets worse when you bend over ...

A pilonidal sinus is a small tunnel that develops at the top of the crease in the buttocks. Trapped hair around the buttocks crease can lead to an abscess, and a pilonidal sinus may develop as a ...