With the help of a routine clinical case about delayed urticaria induced by drug, we have analyzed the scientific societies reports published during the last 5 years on this topic.

We highlighted the differences between the EAACI consensus and documents on drug allergy, commenting their positions and some of their definitions on delayed urticaria.

However, the question of disagreement between definitions of delayed urticaria can generate confusion. It would be beneficial to have more and “official” clearness about this topic because of its important clinical application to our patients.

中文翻译：

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药物过敏引起的迟发性荨麻疹是否存在？

在一个关于药物引起的迟发性荨麻疹的常规临床病例的帮助下，我们分析了过去 5 年发表的关于该主题的科学学会报告。

我们强调了 EAACI 共识和药物过敏文件之间的差异，评论了他们对迟发性荨麻疹的立场和一些定义。

然而，延迟性荨麻疹定义之间的分歧问题会引起混淆。由于它对我们患者的重要临床应用，因此对该主题有更多的“官方”明确性将是有益的。