This hue is caused by an enzyme produced by your white blood cells that are fighting ... They cause more harm than good in these situations. If the thick phlegm persists more than a week, it ...

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 ...

Doctors emphasize that untreated viral infections can develop into secondary bacterial infections, turning white phlegm yellow. Prompt treatment is essential to avoid this progression. These ...