Doctor prescribed Tretinoin and duac gel (Clindamycin And Benzoyl peroxide) to use everyday tretinoin before bed at night and duac gel in the morning for acne. Am I supposed to spot treat my Acne with these or just do it around my whole face?

Hard to be specific. Treatment of acne is a process that is best done with the evidence gained during an in person exam. I would generally use this in all active areas involved at any point in your acne. That said, your doc may have a specific plan based on his/her exam & for that you should clarify it with them.