I had allergy shots for about four years starting as a sophomore in high
school.  Before that, I used to get bloody noses, nighttime asthma attacks,
and eyes so itchy I couldn't get to sleep.  After about 6 months on the
shots, most of those symptoms were gone, and they haven't come back.  I
stopped getting the shots (due more to laziness than planning) in college.
My allergies got a little worse after that, but are still nowhere near as
bad as they used to be.  So yes, the shots do work.
