Nasal Septum Deviation and Nasal Polyps.

Hi doctor, I'd like to ask you about the relationship between a deviated nasal septum, nasal polyps and dust allergy. Does having a permanent dust allergy worsen nasal polyps over time? I'm sensitive to dust which causes me to sneeze excessively and block my nose pretty much completely. The deviated nasal septum worsens this situation and makes it almost impossible to breathe. The nasal polyps too obstruct the nasal pathway, making it challenging to breathe, sleep, etc. I've been using OTC nasal sprays to relieve some of this congestion, but I've been experiencing rebound congestion as a result. I would want to not continue using a nasal spray but I have no other choice but to use it, if I am to breathe easier. I'm also starting to notice my insensitivity to mild smells. Do you think a septoplasty and nasal polyp removal is a last resort step for me, or could there be a non surgical operation to pursue? If the surgery is unavoidable, how long would recovery take?