例1男,14岁,主因发热8天,皮疹半天入院。查体:T38.9℃,颜面部、颈部皮肤可见散在红色小片状斑丘疹,略高出皮面,压之色褪,伴瘙痒,双侧颈部、颌下可及数个花生米大小淋巴结,活动,无触痛,边界清,咽充血,扁桃体I度肿大,左侧可见少许白色分泌物。心、肺、腹未见异常。既往对β-内酰 Example 1 male, 14 years old, the main cause of fever for 8 days, a half-day rash admission. Physical examination: T38.9 ℃, facial, neck, skin scattered red patchy rash, slightly above the skin, the color pressure fade, with itching, bilateral neck, submaxillary can reach several peanuts Size of lymph nodes, activity, no tenderness, border clearance, pharyngeal congestion, tonsil I degree enlargement, a small white secretion can be seen on the left. Heart, lung, abdomen no exception. Previous to β-lactam