I had Restylane injected four days ago, I wonder how to get rid of huge bruise around my left marionette line.

Talk to your provider about what he or she might recommend for you.  Ihave my patients use products that contain Arnica Montana.  Arnica is usedin homeopathic remedies and can help speed the healing process.   Itcomes in both topical and oral form.

Anytime that a filler, such as Restylane, is injected, it is possible to get bruising.  The area of the marionette lines is a common place that a bruise can occur.  It sounds as if you have been treating the area appropriately with ice and arnica.  I would not recommend using lemon potato cayenne pepper vinegar.  The bruise will improve over more time and should resolve completely.  

Thank you for your question.  Bruising is normal after filler.  There are ways to help prevent it before/while injecting by using techniques such as microcannula injections and accuvein.  Once you have the bruise, if your Dermatologist has a laser like the Excel V, they can easily clear the bruise with a laser treatment.  Regards, Dr. Matt Elias