The flaking is my biggest problem right now. I suggest using a hyper-powerful moisturizer, as your skin simply does not heal itself when dry. It fights acne, destroys it even. But never repairs. Olay Regenerist is by far the best I've ever used.

This is totally normal in the first few weeks of the regimen but it does improve as your skin becomes accustomed to the benzoyl peroxide. In the meantime be sure to use a good moisturiser (I like Cetaphil moisturising lotion the best) and if your skin's still dry you can always mix a few drops of jojoba oil into the moisturiser which should help as well.