Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Symptom improvement
Systematic review	53 people Data from 1 RCT	Clearance rates 20/27 (74%) with Ingram regimen 16/26 (62%) with dithranol plus emulsifying ointment	ARR +12% 95% CI –13% to +37% The trial was too small to detect a clinically important difference between groups		Not significant