Sinuses are a grouping of interconnected air pockets within the bones of your skull, but experts aren’t really sure what their true purpose is. Some speculate they are there to provide a cushion, ...

When you're struck by a head cold, flu or allergies, symptoms can quickly intensify as congestion travels to the sinuses. The result: Swelling that feels like a pressure cooker inside your head, with ...

DEAR MAYO CLINIC: I have had ongoing nasal congestion and mucus for the past several months. I thought it was allergies, but my doctor says I likely have acute sinusitis brought on by allergic ...

You’ve probably seen “The Odd Couple” reruns in which Felix Unger whines about his sinus condition — he, like most people, equates the stuffed up feeling of nasal congestion with the disorder known as ...

When you’re stuffed up beyond the usual allergy season woes, one question tends to pop up a lot: Am I dealing with a cold or a full-blown sinus infection? Since both tend to lead to the same cluster ...