患儿 ,女 ,3岁 ,因“发热、头痛、呕吐伴咳嗽 2ｄ”入院 ,近 1个月来患儿全身皮肤反复出现皮疹 ,瘙痒明显 ,纳差。查体 :生命体征平稳 ,精神较差 ,全身皮肤粗糙 ,可见散在红色丘疹及新旧抓痕和血迹 ,口唇红 ,略干 ,咽部充血 ,双侧扁桃体ＩＩ度肿大 ,未见脓性分泌物 ,心、肺、腹 Children, 3 years old, admitted to hospital due to “fever, headache, vomiting with cough 2d”. The skin rash appeared repeatedly in the past month and the itching was obvious. Physical examination: vital signs stable, poor spirit, rough skin, showing scattered red papules and old and new scratches and blood stains, lip red, slightly dry, throat congestion, bilateral tonsil II degree enlargement, no purulent secretions Heart, lungs, belly