Bruising or Tyndall Effect?

As all have stated, bruising is the likely culprit (best case scenario) and the way in which you confirm that this discoloration is bruising is in the manner in which it hopefully improves with each passing day.  You may also want to see if it blanches with pressure which is what should happen if the area is bruised.

We agree with Dr. Shelton that the Tyndall effect may occur soon after the intiial procedure inasmuch as it is a side effect of improper placement of the dermal product. Whether or not it is a rare occurance is contingent on the experience of the injector and the quality of their craft.

The use of Hyaluronidase to dissolve the product should only be considered if it's apparent that the discoloration is not a bruise.

I disagree with my colleagues who say the tyndall effect only occurs after a few weeks after injection.  The Tyndall effect of bluish color, which is a difference in the way light is reflected back from the REstylane-injected tissue, and occurs especially if the filler is too superficial, can be seen immediately.  Bruising should be gone by the latest two to three weeks, so if the blue color is present four weeks on the face, then it probably is the Tyndall effect.  Bruising can be trated
 

Discoloration one day following Restylane treatment likely bruising. Allow 1-2 weeks for swelling and bruising to resolve. In the unlikely event that this represents the Tyndall effect it would take several weeks or longer to appear. This relatively uncommon complication can be treated with Hyaluronidase so don't be discouraged. Your results will likely turn out just fine. In the meantime if you have concerns, return to your injector for reassurance.Stephen Weber MD, FACS