I've had it since my early teens, so 20 years now. Real bad, real bad. Nose like a tap, bunged up, itchy eyes... Classic.
When I was young the doctor gave me some chest inhaler like a big brown disc. Didn't do anything really. I moved to Dubai for a few years and it cleared up, of course, but came back even worse when I moved home again. Discovered Fexofenadine through this thread and it helped for a while but I was still treating the symptoms.
Then about a week ago I found a (albeit american) website article titled "you're treating your allergies wrong" or something. Anyway it recommended a bunch of nasal steroids, the one I could find without a prescription was Fluticasone.. or Pirinase. Waited for a rare moment of clear breathing first thing in the morning, took a shot up each nostril.
It didn't do much for the first 2 days but I tell you 5 days in I'm a new man. Literally no nose nonsense, no itchy eyes, no wheezing.
Genuinely turned my life around. Stopped treating the symptoms, now I don't have them. Take a couple of squeezes first thing in the morning and because Mrs Cat likes to sleep with every window in the house open I repeat the dose before bed.