“Nasal mucus that would necessitate a visit to your doctor may include frequent nosebleeds, nasal congestion that doesn’t go ...

If you’ve ever fought a cold or infection in the past, chances are you’ve had the not-so-pleasant experience of coughing up ...

Coughing up thick, green mucus may mean a bacterial or, less often, viral infection, but that's not always true. You ...

What I usually tell patients to look for in a flare-up is: Is their mucus getting worse? Is there more of it? Is it changing color? Is it going from its usual pale white to a yellow or green sputum?