Koebner Phenomenon Induced by Face Mask Ear Loops.

We present a case of Koebner phenomenon induced by friction due to tightness of ear loops attached to the face mask used as protective measure against spreading COVID-19 infection.

Flare-up of Rosacea due to Face Mask in Healthcare Workers During COVID-19.

COVID-19 (SARS-COV-2) pandemic is associated with aggravation of facial dermatoses caused by professional prophylactic measures, mostly face masks, especially reported in healthcare workers, such as irritant and contact dermatitis, seborrheic dermatitis, rosacea, acne. We present a case of flare-up of rosacea in a nurse working in an Intensive Care Unit for COVID-19 patients, using FFP1 type mask at work and textile or paper mask outside the hospital.