Faergemann 1986.

Methods	Study type: individual RCT Randomisation method: not reported Blinding: double‐blind Intention‐to‐treat analysis used: not reported
Participants	Inclusion criteria of the trial Seborrhoeic dermatitis of the scalp Exclusion criteria of the trial No topical or systemic treatment with antifungal agents or corticosteroids for 3 weeks prior to the start of the study Number of randomised participants: 70 participants in the whole study. In this review, we only considered the participants in the hydrocortisone (N = 24) and miconazole (N = 23) arms Number of dropouts: 3 (5%) Sex: 36 males, 34 females Mean age (range): 38 (21 to 69) years Country: Sweden
Interventions	Treatment Hydrocortisone 1% solution, applied to the scalp once daily for 3 weeks Comparator/s Miconazole 2% Miconazole 2% and hydrocortisone 1% solution, applied to the scalp once daily for 3 weeks
Outcomes	Number of cured participants and treatment failures Relapse rate Efficacy of prophylaxis
Notes	The combination treatment arm of the trial was not included in this review. Adverse events were not reported
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Quote: "randomly allocated"
Allocation concealment (selection bias)	Unclear risk	This was not reported
Similarity of the study groups (selection bias)	Unclear risk	Baseline data were not reported
Blinding of participants (performance bias)	Unclear risk	Whilst the study was reported to be double‐blind, it was not clear who was blinded
Blinding of care providers (performance bias)	Unclear risk	Whilst the study was reported to be double‐blind, it was not clear who was blinded
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Whilst the study was reported to be double‐blind, it was not clear who was blinded
Incomplete outcome data (attrition bias) All outcomes	Low risk	The number of dropouts was small
Selective reporting (reporting bias)	Low risk	Predefined outcomes were reported
Other bias	Unclear risk	The pharmaceutical industry provided the intervention solutions