[Management of suspected allergy to lidocaine].

General Anaesthetics are potentially more dangerous than local anaesthetics. Among the achievement of 25 provocation tests, it always shows good tolerance of the local anaesthetic, included in patients who had presented serious disorders after a previous local anaesthesia. Consequently, the local anaesthetic wasn't the real cause. However, there is to say that in one case 45 minutes after challenge, hand oedema (occurred). Research of hypersensitivity, remains very necessary in every doubtful case.