My daughter has pretty bad allergies. She got pediatric croup until she was about 11 or 12, ir you can believe that. Each episode came on because of allergies. It was so bad that we had to give away our first dog. It devastated my son.
We've since gotten three dogs, and she saw a new allergist. The allergist has her on a "cocktail" of nasal spray and some kind of medicine. It really helps her out a lot. It's the first time that she can go into a house with a cat and stay for hours at a time.
Good luck. Keep trying different medications. You'll eventually find the right combination that will make you feel better.
BTW, I've also started changing my air filter more often. That has helped a bunch.
That and sweeping every day and doing away with most of our carpet.