J.S.
This might be out of your way but I have a great office I highly recommend. They have offices in North and South Scottsdale. They are very friendly and caring. I've been going there for about 5 years and getting allergy injections. I go there when I get sinus infections (instead of my primary care doctor) because they know and understand my history. You'd want to check and see if they take your insurance if you are interested. If you do go, they will probably do a skin test to test for what you are allergic to (not sure if you've ever had one of those done, but it really helps to know what is causing your problems.) Could be a pet or even plants in your yard (as was the case for me-had to hire a lawn service). Good luck to you, allergies stink and I thought I'd escape them moving to AZ but that is not the case!
http://www.allergyasthmaaz.com/hours.htm North Scottsdale Office (near Scottsdale Healthcare Shea) ###-###-####