How does the definition of allergy apply to rare allergic conditions?

Dec 10, 2018 ... An allergy is the body's erroneous reaction to a foreign substance that is completely harmless for all intents and purposes. ALL DEFINITIONS. Allergic Rhinosinusitis. Definition. Allergic rhinosinusitis is an inflammatory condition affecting the nasal passages and sinuses, caused by ... Allergies are your immune system's overreaction to foreign substances. When you touch, inhale or eat something you're allergic to, your body thinks it's harmful ... Clinical criteria were proposed that emphasized the need for heightened suspicion of anaphylaxis in patients with a previous history of allergic reactions to a ... Allergies, also known as allergic diseases, are various conditions caused by hypersensitivity of the immune system to typically harmless substances in the ... J Allergy Clin Immunol. 2010;126(6 Suppl):S1. Food allergy is an important ... The Guidelines include a consensus definition for food allergy, discuss ... However, how best to define a low-risk penicillin allergy history is uncertain. ... definitions, to determine an optimal low-risk definition. Results: A ... An allergy is a chronic condition involving an abnormal reaction to an ordinarily harmless substance called an allergen. Allergens can include aeroallergens ... An allergy is the response of the body's immune system to normally harmless substances, such as pollens, foods, and house dust mite. The simplest definition of an allergen is a substance that causes an allergic reaction, broadly speaking, a hypersensitivity immune response, but usually refers ...