患者,女性,46岁。曾有多次巴比妥类和水杨酸类药物过敏史,以固定性药疹的形式表现。牙周检查:龈上龈下结石较多,全口牙周袋深至3～5mm,局部达6～7mm。牙周治疗采用初期牙周洁治术和分四次在局麻下行牙根面平整术。每次刮治和根面平整后,用0.12％洗必太液作龈下冲洗。牙周手术后1周用洗必太液漱口。患者第一次漱口 Patient, female, 46 years old. There have been multiple barbiturates and salicylates allergy history, in the form of fixed drug eruptions. Periodontal examination: More subgingival subgingival calculus, full mouth periodontal pocket as deep as 3 ~ 5mm, local up to 6 ~ 7mm. Periodontal treatment with initial periodontal neoplasm and sub-four times in a local anesthesia under radical root planing. After each cure and root surface formation, with 0.12% chlorhexidine solution for subgingival irrigation. One week after periodontal surgery, wash mustard liquid gargle. Patient first mouthwash