Will Falconer, DVM Moderator
Sandra, it's important to know that "allergies" are part of the illnesses known as chronic disease. And conventional medicine has zero chance of curing that kind of disease. They give drugs that sort of control symptoms, but never truly cure. And, as you probably saw in the earlier article on Apoquel, the side effects are very significant, even up to cancer in a large number of dogs.
So, finding out what your Boxer is allergic to may be somewhat helpful, but the goal is to cure that state of "being allergic." As you might imagine, one shouldn't wildly over react to normal things, like food, fleas, or pollen. So, to correct that chronic dysfunctional state, the best bet is to hire a qualified homeopathic vet, one who's practice is largely or wholly homeopathy. I tell you how to find one, even if they have to work with you by telephone, on my Recommended Resources page.