Can Photofacial Help Reduce Breast Reduction Scars?

Scarring is a response to injury. After breast reduction, the scars are the result of surgical trauma. Attacking a scar with a technique that creates further injury is illogical and does not work. If there are small visible blood vessels in and around the scar, they can be eliminated with a laser. But reducint the bulk of by other topical treatments, lasers or otherwise, will not work.
If the scars are mature and unacceptable, you might want to consider a formal scar revision.

IPL therapy will not likely help your scars.
Therapies that will improve the appearance of some scars depends on the nature of the scar.

If the scar is wide and flat - re-excision with meticulous closure may help
If your scar is thick and raised - steroid injection may improve the contour
If your scar is dark or red - there are laser treatments that can make small differences, but they need to be tailored to the scar and expectations should be tempered.

Try going back to your surgeon, explain that you're unhappy with the scar, and see what can be done.
I hope this helps.