thanks for your question..
No doubt that you are suffering from rhinosinusitis with or without polyp.
Better to go for CT scan
of your sinuses
and specially focus on osteomeatal complex (OMC), wether it is blocked or not, if it is blocked by any mechanical obstruction then better to go for surgery followed by antillergic therapy and avoidance of allergens, that will reduce your recurrence.
If CT suggest OMC clear then take topical steroidal nasal spray
propionate nasal spray, tab Fexofenadin + montelucast twice a day and avoidance of allergen.
Thank you very much.