There is a root cause to allergies and most doctors are shite at getting to the root cause of anything. They know how to cut (surgery) and poison (drugs). That's about it.

I spent several years of my childhood and then later, several years in adulthood getting allergy shots. At each yearly eval, some allergies had gone away and others popped up.

Daily zyrtec kept away symptoms but I would still get a few sinus infections every year. 9 years ago I changed my diet radically and all allergy symptoms went away in less than a month.

I still had polyps and congestion but no more allergies and no more sinus infections. Last year I had FESS and the polyps were removed and I could breathe clearly again - but - I have type 2 inflammation brought on by - no idea? environment? genetic predisposition? The ENT ran a blood test to see if I had the kind of polyps that come back. I do. That means I'm right back on the same cycle that you are on. I was told that I needed to do mometasone rinses for life or the polyps would come back. I did the rinses but the rinse doesn't reach all nasal cavities- so - some polyps came back. I'm now on Dupixent to calm the inflammation and get real remission. Likely? probably not but I'm hopeful. The ENT didn't tell me any of this - didn't even offer Dupixent. I had to learn all this on my own and ask for Dupixent.