Allergies are among the most common chronic conditions worldwide. It's estimated that 1 in 5 people in the United States suffers from some form of allergies.  Allergy symptoms range from making you miserable to putting you at risk for life-threatening reactions.

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According to the leading experts in allergy, an allergic reaction begins in the immune system. Our immune system protects us from invading organisms that can cause illness. If you have an allergy, your immune system mistakes an otherwise harmless substance as an invader. This substance is called an allergen. The immune system overreacts to the allergen by producing Immunoglobulin E (IgE) antibodies. These antibodies travel to cells that release histamine and other chemicals, causing an allergic reaction.