维生素B_2在临床上应用广泛,但由它所致的过敏反应则尚无报道。现报告1例。 患者,女,33岁。因鼻痒,反复发作性打喷嚏、流清水样鼻涕、鼻塞等6月余。既往虽有磺胺类药物过敏史,但无常年性和季节性鼻炎史。体检:一般情况尚可,心肺正常。双鼻腔粘膜苍白、水肿,以下鼻甲为甚。置1％麻黄素生理盐水棉片可使肿胀的鼻甲明显 Vitamin B 2 is widely used clinically, but the allergic reaction caused by it has not yet been reported. Now report 1 case. Patient, female, 33 years old. Due to nasal itching, repeated episodes of sneezing, watery nose, nasal congestion and more than 6 months. Although past history of allergy to sulfonamides, but unnatural history and seasonal rhinitis. Physical examination: the general situation is acceptable, normal heart and lungs. Dual nasal mucosa pale, edema, the following turbinate is even worse. Set 1% ephedrine saline cotton swollen turbinate can significantly