We often combine fillers with IPL treatment. Not all IPL machines are the same. We use the BBL which is one of the best. I usually wait a week after filler before doing BBL treatment to let any swelling or bruising from the filler treatment resolve. In most cases, the BBL treatment should not affect the filler.
BBL should not be used before or after Juvederm. This procedure, originally referred to as the Photofacial, or Fotofacial. This is simply a renamed version of a device that didn't work then and doesn't work now.
You can do BBL (similar to IPL) before Juvederm or Botox with no problems. If however you receive a Botox or Filler injection, I'd prefer you wait at least 1 week before having BBL.