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Interventions for pityriasis rosea.

A A T Chuh1, B L Dofitas, G G Comisel

  • 1Chinese University of Hong Kong, Department of Community and Family Medicine, Shop B5, Ning Yeung Terrace, 78 Bonham Road, Ground Floor, The Mid-Levels,Hong Kong, Hong Kong. achuh@iohk.com

The Cochrane Database of Systematic Reviews
|April 20, 2007
PubMed
Summary
This summary is machine-generated.

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See all related articles

Pityriasis rosea treatments show limited evidence. Oral erythromycin may help with rash and itch, but more research is needed due to the small study size.

Area of Science:

  • Dermatology
  • Clinical Trials
  • Evidence-Based Medicine

Background:

  • Pityriasis rosea is a common, self-limiting scaly rash affecting young adults.
  • The condition can cause significant itching and typically resolves within 2 to 12 weeks.

Purpose of the Study:

  • To systematically review the efficacy of interventions for pityriasis rosea.
  • To assess available evidence from randomized controlled trials (RCTs) for pityriasis rosea treatments.

Main Methods:

  • Comprehensive literature search across multiple databases (Cochrane, MEDLINE, EMBASE, LILACS, BIOSIS) and trial registries.
  • Inclusion of three randomized controlled trials (RCTs) involving 148 participants.
  • Independent assessment of trial quality and data extraction by two authors.

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Main Results:

  • Limited evidence exists for most pityriasis rosea interventions.
  • One small, good-quality RCT suggests oral erythromycin is more effective than placebo for rash improvement and itch reduction.
  • Other interventions, including antihistamines and steroids, showed no significant differences in itch resolution, with some evidence suggesting they may be less effective than monotherapy for rash clearance.

Conclusions:

  • Most treatments for pityriasis rosea lack sufficient evidence of efficacy.
  • Oral erythromycin shows potential benefit for rash and itch, but this finding requires cautious interpretation due to the limited evidence from a single small RCT.
  • Further high-quality research is essential to validate the effectiveness of erythromycin and explore other potential treatments for pityriasis rosea.