Pityriasis rosea is not triggered by an allergic reaction to food or medication or by stress. Advertisement The signs, immediately before the onset, resemble those caused by a viral infection. Pityriasis rosea occurs mainly in the second and third decade, often during the winter months. "Clusters" of cases occur but not true epidemics. This suggests an infective basis. There may be prodromal symptoms with malaise, fever, or lymphadenopathy. Numerous causes have been suggested, from allergy to fungi; the current favourite is a virus
Introduction. Numerous skin manifestations have been reported during the coronavirus disease 2019 (COVID-19) pandemic, which was caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). 1, 2 Pityriasis rosea (PR) and PR–like eruptions (PR-LE) have been repeatedly described, 1 and authors have recorded a fivefold increase in the number of PR cases during the pandemic. 2 PR and
The differential diagnoses of guttate psoriasis include tinea corporis, secondary syphilis, nummular eczema, and pityriasis rosea. Guttate psoriasis can be distinguished from these entities by history and physical exam, although further studies such as potassium hydroxide (KOH) scrapings and serologies may be helpful in ruling out the other

Tinea versicolor vs pityriasis rosea. Pityriasis rosea is a skin condition that can cause rashes, but it has different causes and characteristics than tinea versicolor. The exact cause of

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is pityriasis rosea caused by stress