I have oily facial skin prone to acne, milia, melasma and whiteheads. I use salicylic based facewash. I use kojiglo gel in the morning and retinol a cream in the night. Both the times I layer my face with moisturizer. I wish to incorporate acne medication cream (benzoyl peroxide) and eau thermal tried acne cream (to clear acne spots) to my regime. Please advice as to what can be layered over what cream and what you advice to continue?