Is there a permanent fix to restore my lip's fullness after mucocele surgeries? (Photos)

I had a mucocele surgery in Nov 2018. the surgery created another mucocele (worse and painful), so my doctor did the second surgery in March 2019. However since the second surgery there's a huge bump at the end of the sutures and a depression where my doctor did the incision (giving a "sunken in" look) I went to another doctor. We did a 5fu & kellog injection in April and Aug 2019.The injections have helped with the bump, not the depression. Is there a permanent fix for this?