“Brown mucus is common in colder seasons when the air in our homes has less humidity,” said Dr. Amanda Jo Marcellino, an ear, nose, and throat surgeon at Atrium Health. “This can then lead ...

However, mucus may appear brown due to the "presence of aged blood ... which can trigger a runny nose, sinus pressure, congestion and postnasal drip, among other bothersome symptoms.

Your nose is built with a fantastic gooey substance called mucus, and we produce close to a liter of it every day. I'm getting there now. Every breath you take is filled with dust, dirt ...