Will Tretinoin and Aczone alone keep my closed comedones away?

I never had a problem with my skin until about 1 year ago. I was having some hormonal issues and my face became covered in closed comedones (no inflammatory acne). The Dr prescribed Aczone in the morning and Tretinoin at night about 6 mos ago. My face has cleared up significantly, but he didn't give me any guidance on how to use it. I have been using it along with a 2% Salicylic Acid and Cetaphil Acne Wash. Would only using Cetaphil Gentle Cleanser, the medications and Cera Ve moisturizer be ok?