Findings

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Evidence found and GRADE certainty

281 questions · 285 findings · 20 reviews · Skin

No studies found 42 · 14.7%GRADE not reported 88 · 30.9%Very low 22 · 7.7%Low 75 · 26.3%Moderate 47 · 16.5%High 11 · 3.9%

Oral aciclovir (long‐term) vs placebo

Incidence of herpes labialis during use of the preventative intervention · participants with recurrent herpes labialis
2 findings from 1 review

Oral aciclovir (short‐term) vs placebo

Incidence of herpes labialis after use of the preventative intervention · participants with recurrent herpes labialis

Oral aciclovir (short‐term) showed no clear difference in incidence of herpes labialis during use of the preventative… compared with placebo (moderate certainty).

1 finding from 1 review

Oral aciclovir (short‐term) vs placebo

Incidence of herpes labialis during use of the preventative intervention · participants with recurrent herpes labialis

Oral aciclovir (short‐term) may leads to lower incidence of herpes labialis during use of the preventative… compared with placebo (low certainty).

1 finding from 1 review

Oral aciclovir (short‐term) vs placebo

Incidence of herpes labialis during use of the preventative intervention (by clinical evaluation) ‐ aciclovir 200 mg 5 times/day · participants with recurrent herpes labialis

Oral aciclovir (short‐term) showed no clear difference in incidence of herpes labialis during use of the preventative… compared with placebo (low certainty).

1 finding from 1 review

Oral aciclovir (short‐term) vs placebo

Incidence of herpes labialis during use of the preventative intervention (by culture) ‐ aciclovir 400 mg twice daily · participants with recurrent herpes labialis

Oral aciclovir (short‐term) may leads to lower incidence of herpes labialis during use of the preventative… compared with placebo (low certainty).

1 finding from 1 review

Oral aciclovir (short‐term) vs placebo

Adverse effects during use of the preventative intervention ‐ aciclovir 800 mg twice daily · participants with recurrent herpes labialis

Oral aciclovir (short‐term) showed no clear difference in adverse effects during use of the preventative intervention ‐… compared with placebo (moderate certainty).

1 finding from 1 review

Oral aciclovir (short‐term) vs placebo

Adverse effects during use of the preventative intervention ‐ aciclovir 400 mg twice daily · participants with recurrent herpes labialis

Oral aciclovir (short‐term) showed no clear difference in adverse effects during use of the preventative intervention ‐… compared with placebo (low certainty).

1 finding from 1 review

Oral retinoids: alitretinoin 30 mg vs placebo

Primary: investigator‐rated good/excellent control of symptoms · people with moderate to severe chronic hand eczema

Oral retinoids: alitretinoin 30 mg leads to higher primary: investigator‐rated good/excellent control of symptoms compared with placebo (high certainty).

1 finding from 1 review

Oral retinoids: alitretinoin 30 mg vs placebo

Primary: participant‐rated good/excellent control of symptoms · people with moderate to severe chronic hand eczema

Oral retinoids: alitretinoin 30 mg leads to higher primary: participant‐rated good/excellent control of symptoms… compared with placebo (high certainty).

1 finding from 1 review

Oral retinoids: alitretinoin 30 mg vs placebo

Adverse effects: headache · people with moderate to severe chronic hand eczema

Oral retinoids: alitretinoin 30 mg leads to higher primary: adverse events ‐ headache Folluw‐up: 48 weeks to 72 weeks compared with placebo (high certainty).

1 finding from 1 review