A higher-than-normal amount of phlegm can build up in your nose, throat, and lungs when you are sick. This build-up may cause coughing and discomfort. Bloody, brown, white, yellow, or green phlegm ...

This results in the familiar symptoms of runny nose, congestion, and coughing up phlegm. Respiratory infections, including COVID-19, are a common cause of inflammation resulting in a productive cough.

"Colds, flus and other respiratory illnesses are more common in colder months," the university's healthcare website reads ... Acute Bronchitis: "Like you can’t stop coughing. You probably started with ...

There are a variety of different coughs, Cleveland Clinic explains: acute coughs, which can begin suddenly and last a few weeks; subacute coughs that last anywhere from a few weeks to a couple of ...

One reason for this is that when you lie down, gravity causes mucus and postnasal drip to pool in the throat, which triggers coughing, explains Edmond Hakimi, DO, internal medicine physician and ...