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患者女,43岁。既往体健,无长期用药史,有青霉素过敏史。于2005年9月21日上午因牙痛,来口腔科就诊,于右侧上颌牙龈部位注射2%利多卡因注射液4ml局麻后拔除智齿。患者回家约2h后头面部皮肤出现瘙痒,继而手部、耳周及面部皮肤充血,但无耳鸣、眩晕及听力改变,未予特殊处理,症状逐渐
Female patient, 43 years old. Past physical health, no long-term medication history, a history of penicillin allergy. On September 21, 2005 due to toothache in the morning, to the dentist, on the right side of the maxillary gingival injection of 2% lidocaine injection 4ml local anesthesia after removal of wisdom teeth. About 2 hours after the patients returned home, itching appeared on the facial and facial skin, followed by hyperemia in the hands, ears and facial skin, but without tinnitus, dizziness and hearing changes, and without any special treatment