Unfortunately, there is nothing you can do to get rid of allergies. An allergy is the reaction of the immune system to substances your body thinks are harmful to you. Once the body detects these foreign substances (which are called allergens), it releases a chemical into your bloodstream (the most common being histamine) and these chemicals cause the familiar allergic reaction you get: the runny nose, the watery eyes and the rashes on your skin. The more severe allergies are called anaphylactic reactions and can cause you to have chest pains, breathing difficulties or even loss of consciousness.