Answer:
Type I hypersensitivity reaction
Step-by-step explanation:
Type I reactions (ie, immediate hypersensitivity reactions) involve immunoglobulin E (IgE)–mediated release of histamine and other mediators from mast cells and basophils. Examples include anaphylaxis and allergic rhinoconjunctivitis. An example is contact dermatitis from poison ivy or nickel allergy.