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Evidence found and GRADE certainty

1,133 questions · 1,153 findings · 36 reviews · Skin

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No studies found 407 · 35.3%GRADE not reported 90 · 7.8%Very low 183 · 15.9%Low 209 · 18.1%Moderate 211 · 18.3%High 53 · 4.6%

Acyclovir vs placebo, vitamins, or no treatment

The proportion of participants with resolution of itch within 2 weeks, as rated by the participant · pityriasis rosea

Acyclovir probably leads to lower proportion of participants with resolution of itch within 2 weeks,… compared with placebo, vitamins, or no treatment (moderate certainty).

1 finding from 1 review

Acyclovir vs placebo, vitamins, or no treatment

The proportion of participants with good or excellent rash improvement within 2 weeks, as rated by a medical practitioner · pityriasis rosea

Acyclovir probably leads to higher the proportion of participants with good or excellent rash… compared with placebo, vitamins, or no treatment (moderate certainty).

1 finding from 1 review

Acyclovir vs placebo, vitamins, or no treatment

Minor adverse events not leading to withdrawal of treatment · pityriasis rosea

Acyclovir showed no clear difference in minor participant‐reported adverse events not requiring withdrawal… compared with placebo, vitamins, or no treatment (moderate certainty).

1 finding from 1 review

Acyclovir + calamine + cetirizine vs calamine + cetirizine

The proportion of participants with resolution of itch within 2 weeks, as rated by the participant · pityriasis rosea

Acyclovir + calamine + cetirizine may leads to higher the proportion of participants with resolution of itch within 2… compared with calamine + cetirizine (low certainty).

1 finding from 1 review

Clarithromycin vs placebo

The proportion of participants with resolution of itch within 2 weeks, as rated by the participant · pityriasis rosea

Clarithromycin showed no clear difference in the proportion of participants with resolution of itch within 2… compared with placebo (moderate certainty).

1 finding from 1 review

Acyclovir + calamine + cetirizine vs calamine + cetirizine

Minor participant‐reported adverse events not requiring withdrawal of the treatment: Headache. · pityriasis rosea

Acyclovir + calamine + cetirizine showed no clear difference in minor participant‐reported adverse events not requiring withdrawal… compared with calamine + cetirizine (low certainty).

1 finding from 1 review

Acyclovir vs erythromycin

The proportion of participants with good or excellent rash improvement within 2 weeks, as rated by the participant · pityriasis rosea

The review found no eligible studies for this question.

1 finding from 1 review

Acyclovir vs erythromycin

The proportion of participants with resolution of itch within 2 weeks, as rated by the participant · pityriasis rosea

Acyclovir showed no clear difference in the proportion of participants with resolution of itch within 2… compared with erythromycin (low certainty).

1 finding from 1 review

Acyclovir vs erythromycin

Reduction in itch score within 2 weeks, as rated by the participant · pityriasis rosea

The review found no eligible studies for this question.

1 finding from 1 review

Acyclovir vs erythromycin

The proportion of participants with good or excellent rash improvement within 2 weeks, as rated by a medical practitioner · pityriasis rosea
1 finding from 1 review

Clarithromycin vs placebo

Reduction in itch score within 2 weeks, as rated by the participant · pityriasis rosea

The review found no eligible studies for this question.

1 finding from 1 review

Clarithromycin vs placebo

The proportion of participants with good or excellent rash improvement within 2 weeks, as rated by a medical practitioner · pityriasis rosea

Clarithromycin showed no clear difference in the proportion of participants with good or excellent rash… compared with placebo (moderate certainty).

1 finding from 1 review