Allergy signs and symptoms

Allergy is a phenomenon of pathological exaggeration of the immune response, particularly the inflammatory reaction, in the face of an antigen generally foreign to the body-it is more specifically referred to as an allergen in the case of allergy. This is a form of hypersensitivity. Treatments that make the body tolerant to the offending substance are called "desensitization".

There are family predispositions-this is called "atopic" terrain. This can be an aggravating factor in certain subjects and the function of allergies developed. Allergy is popularly presented as a multifaceted disease, 1 since a first allergy often announces a more general allergic terrain.

The branch of medicine that studies allergies is allergology. The specialists in this disease are allergists.