Psoriasis is a common chronic inflammatory skin disorder that primarily affects the skin, nails, and joints. Beyond its cutaneous manifestations, psoriasis is associated with several systemic comorbidities. Various factors can trigger or exacerbate psoriasis, including stress, infections, medications, and vaccinations. This article reports what is, to the best of the author's knowledge, the first known case of acute exacerbation of plaque-type psoriasis, presenting as guttate psoriasis (GP), following herpes zoster vaccination. A 52-year-old male with a history of longstanding plaque-type psoriasis developed a sudden flare of GP lesions 2 weeks after receiving the recombinant herpes zoster vaccine. Physicians should be vigilant for potential triggers of psoriasis exacerbation, with the recombinant herpes zoster vaccine being among them.
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