Allergy

An allergy is a hypersensitivity of the immune system. Allergic reaction occurs when the immune system reacts to a normally harmless substances in the environment. The reaction of a substance called an allergen. The predictability of these reactions can be acquired and quickly. Allergy-allergic hypersensitivity and officially named type (direct) or one of the four types of reactions. Allergic reactions to certain white blood cells called basophils and Hízósejtek in the type of immunoglobulin (IgE), called this a sign of activation of antibodies. This reaction, which can be inconvenient to inflammatory reactions.