Comparing light treatment with and without minoxidil to improve skin colour in people with localised vitiligo

INTERVENTION: Intervention1: five percent topical minoxidil in combination with excimer lamp phototherapy: 308nm excimer lamp phototherapy administered over the vitiligo lesions three times weekly on non consecutive days with topical five percent minoxidil applied twice daily over vitiligo patches avoiding surrounding normal skin for 12 weeks Control Intervention1: 308nm excimer lamp phototherapy: 308nm excimer lamp phototherapy over vitiligo patches administered over the vitiligo lesions three times weekly on non consecutive days avoiding surrounding normal skin for 12 weeks CONDITION: Health Condition 1: L80‐ Vitiligo PRIMARY OUTCOME: Reduction in VASI score from baseline to Week 16Timepoint: Baseline, Week 4, Week 8, Week 12 and Week 16 SECONDARY OUTCOME: 1. Physician Global Assessment ; 2 .Patient satisfaction score ; 3 .Time to onset of repigmentation ; 4. Treatment‐related adverse effectsTimepoint: Baseline, Week 4, Week 8, Week 12 and Week 16 INCLUSION CRITERIA: 1.clinically diagnosed localised vitiligo ,age 18 to 60 years 2.willing to provide written informed consent and attend regular follow ups