Many of our patients undergo filler and microdermabrasion treatments at the same time. If they wish to do both on the same day, we require that they do the microdermabrasion treatment first and then the filler. In your case, having already done the filler, I would recommend waiting a few days before doing microdermabrasion so that you give the filler a chance to settle in. We prefer that the areas treated with filler not be massaged, manipulated or superficially sanded (microdermabrasion) immediately after (which is why we recommend they do microdermabrasion first if doing both on the same day). Generally speaking, combination treatments are excellent for rejuvenation of the skin or treated areas.
You can have microdermabrasion typically few days after Juvederm treatment, as it takes time for the filler to "set"