Whether its dust, pollens, or different kinds of food, many Americans today are susceptible to having an allergy. An allergy is a reaction of the immune system to certain types of substances, which are called allergens.
When the person with an allergy, for example animal dander, comes in contact with the allergen, his body will experience different types of reaction. Depending on the type of allergy, the person can experience rashes, difficulty in breathing, sneezing, run…