患儿女,4岁9个月,因“发热、咳嗽1周”于2015年10月12日入院。患儿入院1周前无明显诱因出现发热,体温最高39.8℃,热型不规则,口服“美林”体温能下降至正常,4~8 h后复升,伴有咳嗽,阵发性连声刺激性干咳,夜间咳嗽加剧,咳嗽时偶伴呕吐,为胃内容物,非喷射性,无寒战、抽搐,无异物吸入,无呼吸困难,无喘息,无盗汗,无腹痛腹泻,无尿频尿急尿痛,无皮疹出现。自服“头孢克洛、依托红霉素、 Children with children, 4 years and 9 months, due to ”fever, cough 1 week “ was admitted on October 12, 2015. Children admitted to hospital 1 week before no obvious incentive to fever, body temperature 39.8 ℃, irregular heat, oral ”Merrill “ body temperature can be reduced to normal, 4 ~ 8 h after the rise, accompanied by cough, paroxysmal Irritability of dry cough, increased cough at night, cough with occasional vomiting, stomach contents, non-jet, no chills, convulsions, no foreign body inhalation, no breathing difficulties, no breathing, no night sweats, no abdominal pain diarrhea, Urgency, no rash appears. Self serving ”" cefaclor, relying on erythromycin,