Thanks for writing to us.
Personally I have done limited lip fillers but I have always used Juvederm. So as such my exposure and experience in fillers is limited
The bluish hue along with swelling post filler could be due tohaematoma
Tyndall effect, happens when filler is injected too superficially
You may manage the patient by giving ice compresses, oral steroid
and antihistamines to reduce the swelling. If its a bruise
it shall subside with vitamin k based cream or Arnica montana cream. If its due to tyndall effect, it will go only when the filler is reabsorbed naturally or can be done by giving hylase injection.
Hope this helped you to some extent.