例1女,10岁。因发作性眼部剧痒2年于1998年10月就诊。2年前患儿出现发作性眼部剧痒,用力揉眼也不能缓解,无畏光、流泪,发作时伴有面部潮红、恶心,每次发作持续2～5分钟。发作间期不等,有时每日均有发作,有时每月仅发作1～2次。曾外用多种滴眼液、止痒药或口服抗过敏药治疗,均无 Example 1 Female, 10 years old. Due to episodes of eye itching 2 years in October 1998 treatment. 2 years ago, children with episodic ocular itching, rubbing the eyes can not relieve, fearless light, tears, attack accompanied by facial flushing, nausea, each episode lasts 2 to 5 minutes. Seizures ranging from time to time, and sometimes have a daily attack, and sometimes only attack 1 to 2 times per month. Had a variety of external use of eye drops, anti-itch drugs or oral anti-allergy treatment, no