Objective : To observe the clinical effect of Kangxunwan on acute urticaria in pilots.目的: 观察抗荨丸治疗飞行员急慢性荨麻疹的临床疗效.The pilots had to take emergency action to avoid a disaster...飞行员不得不采取紧急措施避免灾难的发生。He had always been irrelig...