Lidocaine is considered a safe and effective local anesthetic in anesthesiology and is the standard to which new amide anesthetics are compared. As it an amide derivative, and the frequency with which lidocaine elicits an allergic response is much less than that of anesthetics derived from paraaminobenroic acid esters. Case reports od sensitivity to lidoeaine have been reported, but they are rare. This 29 year old male patient had on episode of asthmatic breathing after supraclavicular brachial plexus block using 30 ml of 1% lidocaine with epinephrine(1:200,000). We report a case of asthmatic breathing due to lidocaine and a review of the literature for allergy local anesthetics.