Well I go in for my first allergy shot Wednesday. It has been a long time coming. I am allergic to cats, dogs, dust mites, household dust, etc. I had shots several years ago for pollen, grasses, and molds. Not much of reaction to these things now, thank goodness. The allergies just keep changing from one thing to another. I was told this is very common, not unusual. I hope I get some relief soon, as the nasal stuffiness, and dryness is annoying.