ALLERGY, INFECTION OR AUTOIMMUNE DISEASE? A POLYMORPHOUS SKIN RASH IN A YOUNG WOMAN.

Coronavirus disease-19 (COVID-19) is an ongoing global contagious viral pandemic caused by the 'severe acute respiratory syndrome coronavirus 2' (SARS-CoV-2) that was first reported in December 2019 following a cluster of pneumonia cases in Wuhan, China. Pulmonary manifestations of the illness predominate; however, of the extrapulmonary signs associated with COVID-19, a variety of dermatological manifestations have increasingly been reported. These cutaneous manifestations may be due to the effect of the viral infection on tissues, effects on the coagulation system, the effects of medication or dysregulated immune responses. This case report describes a polymorphous rash that took several weeks to evolve, posing a diagnostic dilemma for clinicians. It presented in a young woman as a possible allergy, then progressed into a 'post-viral'-looking generalised exanthem; finally, it developed into a disease of immune dysregulation. [ABSTRACT FROM AUTHOR]