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Contact urticaria from Emla ® cream
Author(s) -
Waton J.,
Boulanger A.,
Trechot P. H.,
Schmutz J. L.,
Barbaud A.
Publication year - 2004
Publication title -
contact dermatitis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 96
eISSN - 1600-0536
pISSN - 0105-1873
DOI - 10.1111/j.0105-1873.2004.00475.x
Subject(s) - lidocaine , prilocaine , medicine , anesthesia , dermatology , allergic contact dermatitis , local anesthetic , patch test , contact dermatitis , surgery , allergy , immunology
We report the first case of immediate‐type hypersensitivity caused by Emla ® cream. A 55‐year‐old woman, after using Emla ® cream, went on to develop urticaria. An open test was positive to Emla ® cream. Patch tests and prick tests were performed with Emla ® cream, the components of Emla ® cream (lidocaine, prilocaine and castor oil) and other local anaesthetics. The patch test with lidocaine and the prick test with Emla ® cream were both positive. An intradermal test and subcutaneous administration of 3 anaesthetics that had negative patch tests and prick tests were performed and well tolerated, allowing their use. In the literature, anaphylactic reactions to lidocaine injections, delayed‐type hypersensitivity after lidocaine subcutaneous injections and contact dermatitis from Emla ® cream have all been described. This first case of contact urticaria from Emla ® cream was due to lidocaine and did not show any cross‐reaction with other local anaesthetics.