Patch tests 'essential' for diagnosing face-mask dermatitis

The occlusive humid environment within the mask could increase the risk for dermatitis, researchers say

The chemical components of disposable facemasks can cause allergic and irritant skin reactions, and patch tests are key to making the correct diagnosis, say clinicians from South Korea.

close up of young woman with face mask

Dr Hye One Kim and colleagues from the dermatology department at Kangnam Sacred Heart Hospital in Seoul did a case-control study of adults diagnosed with facial dermatitis after the COVID-19 outbreak.

Participants included 27 patients whose lesions and symptoms worsened after wearing