Ref (type)	Population	Outcome, Interventions	Results and statistical analysis	Effect size	Favours
Symptom improvement
RCT 3-armed trial	71 people with Psoriasis Area and Severity Index (PASI) score >10	Change in PASI score 21 days –55% with phototherapy plus saline spa water balneotherapy –64% with phototherapy alone	P value not reported for combination treatment v phototherapy alone
RCT 3-armed trial	71 people with Psoriasis Area and Severity Index (PASI) score >10	Change in PASI score 21 days –55% with phototherapy plus saline spa water balneotherapy –29% with saline spa water balneotherapy alone	P <0.001 for combination v balneotherapy alone	Effect size not calculated	phototherapy plus balneotherapy