Descriere: An allergy is an abnormal reaction or increased sensitivity to certain
substances or "allergens." The allergic individual produces symptoms when
exposed to these substances which are harmless to non-allergic people. Many
people have few, if any, allergies (except perhaps to having to work inside
on a beautiful, sunny day). Others are so incredibly allergic that merely
taking an aspirin or getting stung by a bee can trigger a potentially life-
threatening allergic reaction (see "Anaphylaxis: the most serious allergic
reaction" below).