Hi EnKay, and thanks for your post. I see my colleague, , and community member , have already responded to your inquiry. You've posed an excellent question which, I have something to contribute to as well.
For folks with this condition. excess mucus/phlegm can be a characteristic symptom.
For some, mucus clearance can be a considerable challenge.
There are ways to cough that can help with the mucus removal as well as some techniques you might want to familiarize yourself with.
Wishing you well,
Leon (site moderator)