An allergy refers to an exaggerated reaction of the immune system in response to certain foreign substances. In non-clinical terms, allergies can mean water eyes, sneezing and even breathing problems. The best way to deal with allergies is to find out what it is you are allergic to. It's comforting to know you are not alone, as a fifth of the U.S. population suffers from some type of allergy.

Your primary care physician is trained in many aspects of health, including a general knowledge of allergies. However, for the best way to get a full allergy assessment and related treatment is to go to an allergist. An allergist specializes in the treatment of allergies and can better pinp...