title: Case reports: type I hypersensitivity to lidocaine.
abstract: Lidocaine hydrochloride is the most commonly used anesthetic agent in dermatology. Despite its widespread and frequent use, adverse reactions to lidocaine are uncommon. The majority of side effects include vasovagal reactions and local side effects consisting of bruising and edema at the injection site. Immunologically mediated allergic reactions are thought to account for only 1% of these adverse reactions. We report an extremely rare case of a true type I hypersensitivity allergy to lidocaine hydrochloride.
authors.affiliation: Department of Dermatology, Rush University Medical Center, Chicago, IL, USA.
authors.forename: Reshma Nair
authors.initials: RN
authors.lastname: Haugen
authors.forename: Clarence William
authors.initials: CW
authors.lastname: Brown
mesh_terms: D000153:Acne Keloid / Q000188:drug therapy; D000328:Adult; D000779:Anesthetics, Local / Q000008:administration & dosage / Q000009:adverse effects*; D004342:Drug Hypersensitivity / Q000175:diagnosis / Q000209:etiology*; D006801:Humans; D006969:Hypersensitivity, Immediate / Q000139:chemically induced*; D015552:Injections, Intralesional; D007428:Intradermal Tests; D008012:Lidocaine / Q000008:administration & dosage / Q000009:adverse effects*; D008297:Male; D014222:Triamcinolone Acetonide / Q000008:administration & dosage
chemical_list: D000779:Anesthetics, Local; D008012:Lidocaine; D014222:Triamcinolone Acetonide