[Erythrodermic psoriasis after COVID-19].

We present a clinical case of a patient with acutely exacerbated erythrodermic psoriasis vulgaris after symptomatic infection with SARS-CoV‑2 (severe acute respiratory syndrome coronavirus 2). Various factors are already known that can lead to an exacerbation of psoriasis, such as drugs or infections with, for example, streptococcus. An association between psoriasis and an infection with SARS-CoV‑2 has been described so far in individual case reports, in which, however, drug treatment with for example hydroxychloroquine, a known trigger of psoriasis, often took place. Later cases of exacerbation of psoriasis, partly as pustular psoriasis have been published also without drug induction. However we present for the first time a case of erythrodermic psoriasis triggered by COVID-19 (coronavirus disease 2019) without an obvious drug trigger.