Results Ih 292 patients with chronic urticaria,the total positive reaction reach at 71.92%.The positive reaction rate of the dermatophagoides farinae(63.69%)was the highest amomg the allergens.

• 结果292例慢性荨麻疹患者中；有210例为阳性反应；阳性率为71.；92%25；单个变应原中；以吸入性粉尘螨的阳性率为最高；达63