Coughing up phlegm feels gross, especially if you’re already dealing with other unpleasant symptoms from a cold or other ...

Bloody, brown, white, yellow, or green phlegm may be a sign of an underlying condition or infection. Viral and bacterial infections, allergies, and respiratory illnesses can cause phlegm as a symptom.

For beginner runners and seasoned athletes alike, even the shortest and lightest runs can feel difficult when you add in bad weather or allergies that can cause phlegm. Your body may also build up ...