Due to allergies (dust mites?) & mold. I heard someone mention "allergies and probably a mild lung infection"..exactly what I got-a persistent, consistent cough exacerbated by stress and physical activity. Totally new to me, I used Mucinex. I think it’s more irritation of the lung lining rather than phlegm production which Mucinex is geared for.
I also exacerbated it inhaling smoke from a fire. Pollen not an issue, but mold and dust mites most probable.

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