止血芳酸、止血敏、维生素K1联合用药已被临床广泛应用于各种原因引起的出血及术后止血等。我科从1998年至1999年在使用三药联合应用时出现不同程度的荨麻疹、呼吸困难、面色紫绀、畏冷寒战等症状。现将3个病例的特点、处理及分析总结报告如下。1　病例介绍例1　林××,男,19岁 Hemostatic aromatherapy, bleeding sensitive, vitamin K1 combination therapy has been widely used in clinical clinics for bleeding and postoperative hemostasis. Our department from 1998 to 1999 in the use of three drugs when combined with varying degrees of urticaria, dyspnea, cyanosis, chills and other symptoms. Now three cases of the characteristics, processing and analysis summary report is as follows. 1 case introduction Example 1 Lin × ×, male, 19 years old