just this past January (1997). In this study, researchers studied children who were undergoing allergy shots for allergies to things that are in the environment year-round. They found that over two years, the shots did not help. There are a number of arguments that could be raised with this study, however, overall, it makes some excellent points that the effectiveness of allergy shots is not really known. And in fact, they may not be helpful at all in many children.
So, what does this mean for you as a parent when it comes to the idea of allergy shots? Certainly there are children who have severe allergies or asthma in which multiple medications and environmental control strategies have failed to adequately control symptoms. In these children and in a few other situations, allergy shots may be worth trying. It is a decision that must be made between you and your child's doctor realizing that the shot your child receives each week for many months may take a long time to show results; and it may fail to relieve symptoms altogether.