Our expert says:
Chronic exposure to ambient dust particles can set off symptoms of chronic cough and rhinosinusitis. Often cough can be attributed to post-nasal drip or acid coming up the food pipe. I will certainly try a steroid-based nasal spray (you need to get this from your doctor) and a course of antihistamines. See if this helps. Hopefully you are not taking blood pressure tablets that can sometimes cause cough as a side effect. Good that your chest x-ray is clear. If symptoms persist, see a pulmonologist.
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