患儿,男,3岁。2006年4月10日,患儿面部及身上出现红色点状疹子,自服香菜和香椿水,第3天全身出满密集红色疹子,局部区域融合成片,伴发热、咳嗽,精神饮食差,未就诊。第9天,患儿声嘶严重、呼吸困难、反应差、2 d不能进食,全身皮肤包括疹子呈黑褐色,立即到乡卫生院就诊。血常规检查 Children, male, 3 years old. April 10, 2006, children with red spots on the face and body rash, serving cilantro and toon water, the first three days of the body full of dense red rash, the local area into a film, with fever, cough, poor mental diet, Not treated. Day 9, children with severe hoarseness, breathing difficulties, poor response, 2 d can not eat, systemic skin including rash was dark brown, immediately to the township hospital. Blood test