1病例报告患儿男,7岁。因无明显诱因出现咽部肿痛,口服头孢克洛颗粒250mg、西瓜霜喷剂治疗1天,症状缓解。但睡前发现双足背散在分布数个小红点,无瘙痒及疼痛,次日晨起皮疹增多并出现四肢疼痛就诊。查体:四肢可见散在针尖至小米粒大小鲜红色斑疹、瘀点及瘀斑,压之不褪色,伴有踝关节及双上肢肘关节疼痛及肿胀。血常规检查示,白细胞计数11.9×109/L,余无异常。考虑为头孢克洛致过敏性紫癜。停用该药,给予甘草锌颗粒及维生素C片口服,2天后效果不明显,住院治疗。查 1 case report children male, 7 years old. Because there is no obvious incentive to pharyngeal swelling and pain, oral cefaclor particles 250mg, watermelon frost spray treatment for 1 day, relieve symptoms. However, before going to bed found that feet scattered in the distribution of a few red spots, no itching and pain, rash increased from the next morning and the emergence of limb pain. Physical examination: limbs scattered scattered in the tip to the small grain size of fresh red rash, petechiae and ecchymosis, the pressure of fade, accompanied by ankle and upper extremity elbow pain and swelling. Blood tests showed that white blood cell count 11.9 × 109 / L, I no exception. Consider cefaclor allergic purpura. Disable the drug, given licorice zinc tablets and vitamin C tablets orally, 2 days after the effect is not obvious, hospitalization. check