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<p>Pityriasis rosea (PR) is typically a benign and self-limiting dermatological condition that begins with the emergence of a single primary skin lesion (herald patch) followed by a secondary rash eruption in a distinct Christmas tree pattern on the trunk. The lesions are often pruritic, and many patients experience prodromal symptoms. Symptoms tend to spontaneously resolve within 2 to 12&#xa0;weeks. Thus, PR generally requires only monitoring and on occasion symptomatic treatment, which can include antihistamines and topical emollients to reduce itch and rash. In more severe cases, systemic treatments, such as steroids, macrolide antibiotics, antivirals (e.g. acyclovir), or phototherapy may be considered. However, the evidence supporting the efficacy of these treatments for PR is limited and of varying quality, and further research is warranted.</p>

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Monitor patients with pityriasis rosea and treat symptoms if required based on disease severity

  • 期刊论文

  • 发表日期：

    2025年10月24日

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  • Aisling McGuigan

摘要

Pityriasis rosea (PR) is typically a benign and self-limiting dermatological condition that begins with the emergence of a single primary skin lesion (herald patch) followed by a secondary rash eruption in a distinct Christmas tree pattern on the trunk. The lesions are often pruritic, and many patients experience prodromal symptoms. Symptoms tend to spontaneously resolve within 2 to 12 weeks. Thus, PR generally requires only monitoring and on occasion symptomatic treatment, which can include antihistamines and topical emollients to reduce itch and rash. In more severe cases, systemic treatments, such as steroids, macrolide antibiotics, antivirals (e.g. acyclovir), or phototherapy may be considered. However, the evidence supporting the efficacy of these treatments for PR is limited and of varying quality, and further research is warranted.