Hello.
Thank you for asking at HCM.
From your history, I guess you have
chronic rhinosinusitis, most probably due to allergy.
If you have not consulted an ENT surgeon, that will be my first suggestion. He will examine and look for some anatomical problems like deviated
nasal septum, etc. He will also examine your nasal cavities and sinus entry point with a small endoscope, if he feels the need to do so.
But if you have no such problems, I would suggest you to take intranasal
corticosteroids and
montelukast and
levocetirizine for 2 weeks. Please do not use otc decongestant sprays unless you really need them. I would also suggest you to use nasal saline spray 3-4 times a day.
Daily steam inhalation, avoidance of dust-air pollution-smoke & regular breathing exercises will also help you on a long run.
Hope this will be helpful to you.
Wish you the best of the health.
Regards.