What is another word for immediate allergy?
Pronunciation: [ɪmˈiːdɪət ˈaləd͡ʒi] (IPA) 
Immediate allergy is a type of immune reaction that occurs within seconds or minutes of exposure to an allergen. It can cause a range of symptoms from mild to severe, such as hives, itching, swelling, difficulty breathing, and anaphylaxis. Synonyms for immediate allergy include anaphylaxis, type 1 hypersensitivity, acute allergic reaction, and IgE-mediated hypersensitivity. Anaphylaxis is a severe and life-threatening allergic reaction that involves multiple organs and symptoms. Type 1 hypersensitivity is the most common type of immediate allergy that occurs when the body overreacts to an allergen by releasing histamine. Acute allergic reaction refers to a sudden and intense immune response to an allergen. IgE-mediated hypersensitivity involves the mediation of immunoglobulin E antibodies in the allergic reaction.
