If patients don't achieve Treatment Success for 4-week FP 0.05% cream treatment, they will be discontinued study treatment and conduct End of Therapy Visit. The subjects eligible for MAINTENANCE phase will be 1:1 randomized to receive either emollient twice daily plus FP 0.05% cream once daily twice a week (Group A), or emollient twice daily (Group B). FP 0.05% cream will be applied to all healed sites and any newly occurring sites.