If your mucus is gray or black... …you likely inhaled dark-colored particles, like smoke from a fire or heavy exhaust.

The stuffy nose. Eyes so watery or itchy you can't see straight. And that's just the start. Here's what you should know about ...

Chronic rhinosinusitis with nasal polyps presents a substantial clinical burden, affecting nasal airflow, olfactory function, ...

DEAR DR. ROACH: I am on a low-sodium diet by choice. I do not add salt to anything, except when I bake for others. I have ...

A stuffy nose can cause a lot of discomfort However most of the time it does not require medical attention and resolves on ...

The crises were a new setback in what has become a more than two-week battle by the frail pope to overcome a complex respiratory infection. The Vatican said the mucus that had accumulated in Francis's ...

Pope Francis is in stable condition after his episodes of acute respiratory failure on Monday, the Vatican said Tuesday.

The pope had part of one lung removed as a young man, making him especially vulnerable to respiratory infections and ...

When a white blood cell finds a germ, it latches onto it. Then it changes its shape to surround the germ. You can imagine the ...

"The mucus is clear rather than this kind of pale green or yellow colour. They may still get sinus pain, they may still get a runny nose - that tickly cough because the mucus drips back - but it ...

Mucus serves an important purpose in the nasal passages and other cavities throughout the body. It helps protect against infection and harm from foreign objects. It also helps lubricate these ...