The first thing we need to understand is what an allergy is.  An allergy is a reaction to something outside the body that the body itself feels is a threat to it.  More specifically, this is the immune system. 

The truth of the matter is, everybody has allergies in as much as the body is always going to view outside agents such as pollen, grass, weeds, and even foods as invaders.  The difference between someone who “suffers” from allergies and someone who doesn’t is the degree to which the body reacts or in the case of sufferers, overreacts to the allergen. 

For example, let’s take hay fever season where the pollen count is especially high and have two people walk out into the street.  The person who has a normal immune system and doesn’t overreact to every outside allergen will probably not even notice that the pollen count is high.  There will be no itching, sneezing, watering of the eyes or any symptoms whatsoever.  The person who has an overactive immune system, at least to this particular type of allergen, will begin to sneeze.  Maybe the eyes will start to water.  In severe cases the person may even have trouble breathing, all because their immune system is viewing the pollen as a great threat. 

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