How many times have we heard patients say they are “allergic” to drugs like antihistamines and corticosteroids?  Hypersenstivities to medications used to treat allergic diseases are fortunately uncommon.  This is Dr. Stadtmauer’s experience with “allergy” to Benadryl….check the references below–it’s legit!  “I have seen a couple of cases of drug exanthem from antihistamines but never…