Follow-up question: After Volbella, my lips have turned brownish and purple. Should I be concerned and is there a way to fix it?

The good news is the filler can be absorbed. We do a lot of lip fillers  I have never seen this particular reaction but every person reacts to these products differently.   I would do a diet history and journal and assess all other medications/supplements as well. It is very unlikely this will be permanent.  I would see the surgeon who injected you and see what they can do for you. Sometimes anti-inflammatory medications can help this.Best,DrC

Swelling and bruising can last 1 to 2 weeks after lip filler injections. To diminish the bruising, I recommend using LightStim LED or, in more significant cases, a vascular laser or IPL treatment. Arnica with Bromelain (""Arnika Forte"") can also be taken to help speed up the healing. 
If you're unhappy with your results, you can also have the filler dissolved with hyaluronidase and try a different filler and/or technique next time. If the bruising doesn't improve - or if you feel any pain - see your physician or an experienced cosmetic dermatologist for an evaluation. Best, Dr. Emer

Bruising, swelling, sometimes discoloration, lumps, and bumps are normal side effects assuming proper injection. They should be gone in a matter of days. In general, if it continues to feel uncomfortable up to this time, consult your doctor to get a complete assessment or have the filler dissolved.