Doctor answers about:

When you cough up phlegm and you swallow it back down

A member asked:

Why do i cough up phlegm once i start running?

3 doctors weighed in across 2 answers

A member asked:

How can i get my 19 month- old son to cough up phlegm?

A doctor has provided 1 answer

A member asked:

How come i cough up phlegm?

A doctor has provided 1 answer

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