I am highly allergic to dust mites. I have been taking allergy shots for several months, however I still swell up the size of an orange at the injection site. I am now on maintenance with my shots. My question is I am feeling worse than ever. Prior to receiving the shots I had chronic sinus infections. I never had issues with sneezing, runny nose, itchy and watery eyes. I am now having all of those symptoms all the time. Will that ever go away? I know that the shots have resolved the thick mucus which has now caused the opposite to occur. I have dust at work as well as at home (which I try to keep to a minimum). I feel like the shots are currently making me worse. If I am still swelling at the injection site does that mean that it is just taking longer for my body to build up the immunity?