I like my doc -- T. Vaughan -- but I have my doubts about the usefulness of the shots. I haven't taken them in over a decade and nothing has changed. (My allergeis still suck, but they sucked on the shots, too.)
I've been on the shots for almost 8 years. When I first went, my allergies were so bad that I averaged maybe 2-3 hours sleep for about 6 months, because the drainage was so heavy that I was regurgitating it most of the night.
The shots have definitely reduced that. I still have pretty bad allergies, but not like they were before.
That said, I also think a change in diet and lifestyle can be particularly effective in reducing many symptoms, and have also questioned whether I still need to continue getting the shots.
I don't live in Austin so I can't give you a recommendation on a doctor.
However I've been getting a twice yearly allergy shot during the time of the year I am feeling the worst and they do a great job. I just go to an Ear/Nose/Throat guy, and he gives me a steroid shot (usually dexamethasone). It easily gets me through the entire couple of months I feel bad.
He has recommended to me a few times seeing an actual allergist to get tested, but the one-time shot does the trick for me during my problematic times (usually end of September and the end of March).
I don't think they work, from what I've heard. I got tested and I was allergic to literally everything but Allegra seems to help when it's bad. I've heard from others that the shots are a crock as well...
weird. shots help me DRAMATICALLY. I got them for about 8 years from childhood through high school, and after that i was basically cured of allergies for about 5 years, not even a benadryl or allegra needed. I started developing them again just about a year ago, and started back on the shots - they are mostly gone. I take an occasional zyrtec and now get a shot every 3 or 4 weeks. never have itchy nose/itchy watery eyes anymore.
They helped me a ton too. I used to go into antaphylactic shock if I was bitten by a fire ant. This is a huge problem in Texas. I did shots for a couple of years and now I don't almost die when I get bitten.