患儿 ,男 ,2 1天 ,第一胎 ,39周 ,顺产 ,产后无窒息史 ,出生体重 3.5 kg。生后 1小时开奶 ,无呕吐呛咳。于 2天前因右面颊部出现10多个 3mm大小的红色斑丘疹 ,伴搔痒 ,乡村医生即给予口服息斯敏 2 .5 mg,3个多小时后患儿出现嗜睡呕吐。呕吐呈非喷射状 ,量较多 ,含奶块 ,无胆汁 Children, male, 21 days, the first child, 39 weeks, natural delivery, postpartum no history of asphyxia, birth weight 3.5 kg. 1 hour after birth, no vomiting cough. Two days ago, there were more than 10 red rashes with a 3 mm size in the right cheek, accompanied by pruritus, and the village doctor gave oral astemizole 2.5 mg. After 3 hours, the patient developed lethargy and vomiting. Vomiting was non-jet-like, more volume, with milk, no bile