[Primula eczema--well-known and overlooked].

A case of primula dermatitis presenting as recurrent hand eczema is reported. In spite of a positive patch test reaction to primin, the diagnosis was not made until three years later, when the patient was shown a colour photo of Primula obconica and admitted contact with the plant. Since few patients are able to supply correct information of exposure to this primula species, it is recommended to show colour photos of the plant as a routine procedure in cases where there are positive patch test reactions to primin.