Erythema multiforme like reaction to santos rosewood (Machaerium scleroxylon) and Torreya nucifera.

Erythema multiforme is a skin disorder characterised by target epithelial eruption, which is mainly caused by infection or drugs. In this case, we report an erythema multiforme like reaction caused by contact dermatitis against wood, especially santos rosewood. During the hospitalisation, we performed a patch test with lumber used in the patient's workplace, and recognised a positive response to multiple woods and a simultaneous recurring eruption (flare up) outside of the test site. The findings from this case of contact dermatitis caused by frequently used industrial wood type is important for the management of occupational environments. A review of the literature on erythema multiforme like reaction due to contact dermatitis, including past case reports, has also been provided. © BMJ Publishing Group Limited 2019. No commercial re-use. See rights and permissions. Published by BMJ.