Hi, I had 2ml HA filler over 2 yrs and got my upper lip dissolved after it migrated. Post dissolving, my lips became smaller but it seems like the migration is still there. The migrated filler looks like white patches around my lips. I'm concerned that injecting more hyaluronidase will target my own HA rather than the ‘white patch’—my nurse said she can’t exactly target where it goes. How many sessions does it take to dissolve migrated filler? Below are current and pre-filler photos.