Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Adverse effects
RCT	60 people with any severity of acute or chronic diffuse otitis externa on otoscopy, in a primary-care setting	Local stinging or burning in first few days of treatment 6/32 (19%) with neomycin–dexamethasone–acetic acid spray 3/26 (12%) with framycetin–gramicidin–dexamethasone drops	Significance not assessed