患儿男,3岁,因外感后发热2d,在家给予青霉素静滴,口服小儿速效伤风胶囊及头孢氨苄等,病情未见好转,呈加重趋势,故来院就诊。查体:T 39.2℃,心脏未见异常,双肺呼吸音略粗,余无特殊。既往无过敏史。血常规示:WBC 19.3×109·L-1,L0.82,胸透示无明显异常。给予0.9％氯化钠注射液100ml+穿琥宁注射液120mg静滴。用药约5min后突发全身瘙痒,随即出现片状 Pediatric male, 3 years old, exogenous fever 2d, given intravenous penicillin at home, oral infantile rapid cold capsules and cephalexin and so on, the condition did not improve, was aggravating the trend, it came to the hospital. Physical examination: T 39.2 ℃, no abnormal heart, lung sounds slightly coarse breath, I no special. No history of allergies. Blood showed: WBC 19.3 × 109 · L-1, L0.82, chest showed no significant abnormalities. Give 0.9% sodium chloride injection 100ml + Chuanhuning injection 120mg intravenous infusion. Sudden systemic pruritus after about 5min, then there flake