Discussion:
COVID-19 caused a variety of dermatological manifestations. Demodicidosis is an ectoparasitosis caused by the proliferation of a mite: Demodex sp , that permanently resides in or near the pilosebaceous unit and seborrheic glands. It has been implicated as a pathogen in innumerable skin conditions and typically in blepharitis and facial dermatitis such as rosacea-like or papulo-pustular eruptions1. The symptoms of scalp demodicidosis are not common, and can be found mainly in people with weakened immune systems 2. Immunodeficiency appears to create a favourable environment for the development of the parasite.
In our case, disturbances of the host’s immune response caused by SARS-COV-2 explains this atypical localization of demodicidosis.