Were there laboratory tests done such
as blood tests or chest
x-ray? Chronic cough, such
as your, may be due to smoking, allergies, certain medications ( beta blocker or ACE inhibitors), asthma, and even heartburn. It is important to know the underlying cause. Treatment will depend on this. At this point, decongestant and pain reliever may help provide symptoms. But it is important that you have this evaluated further by your doctor for proper diagnosis. Take care and best regards.