Prurigo Nodularis Eruption Triggered by SARS-CoV-2 Vaccine.

We discuss a case of a 63-year-old male who presented with generalized itchy papulonodular rash a few weeks after receiving a vaccination against SARS-CoV-2. The patient had a negative medical history for atopic dermatitis and other pruritic skin conditions, and clinical presentation was consistent with prurigo nodularis, which was confirmed later by tissue biopsy and microscopic analysis. The pathophysiology of this skin condition is thought to be due to an overlap between the immune and nervous systems. Due to the hypothesized involvement of the immune system in this disease, it. is presumed that the patient had a dysregulated immune response caused by his recent SARS-CoV-2 vaccination.