Wu 2005.

Study characteristics
Methods	This study was carried out in a secondary care setting. The blinding within this study was unclear. It was unclear if ITT analysis was carried out This study was conducted in China.
Participants	60 participants were recruited: None dropped out. Inclusion criteria of the trial Adults Ordinary or refractory warts not specified Warts on the hands and face
Interventions	Chinese tradition herbal medicine (Qu You Ding) Peptide butylamine lineament in the control group Both groups underwent a 2‐week course of daily treatment.
Outcomes	Outcomes of the trial Cure at 8 weeks
Notes	The article was in Chinese; full translation was obtained.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	The method of randomisation was unclear.
Allocation concealment (selection bias)	Unclear risk	Allocation concealment was unclear.
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	No details were given about blinding.
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	No details were given about blinding.
Incomplete outcome data (attrition bias) All outcomes	High risk	6/60 participants were not included in the analysis because of incomplete data: 2/30 participants were in the treatment group; 4/30 participants were in the control group. It was unclear why the participants discontinued.
Selective reporting (reporting bias)	Low risk	All outcomes were reported.