Recommendations for patch testing methodology and allergens differ between contact dermatitis groups worldwide. Currently, there is no compilation of these recommendations.
Objective:
This study aims to summarize the current recommendations for patch testing methodology and allergens.
Methods:
Data was collected through a literature search and by contacting representatives from 24 known contact dermatitis groups.
Results:
Thirteen groups responded to our inquiry. As expected, recommendations for allergens and methodology varied between different groups; however, most groups based their recommendations on the European baseline series. We have compiled tables of methodologies and commonly tested allergens.
Conclusion:
The differences between groups underscore the need for further international collaboration among contact dermatitis groups.
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