How to remove scar tissue from lip filler?

Decided to get my lip fillers dissolved but after doing 3 sessions of hyaluronidase my top lip won't go back to original size. My injector told me there's isn't any filler left and it's probably scar tissue from filler. It's there any way to treat the scar tissue and go back to my original small upper lip? I had 2ml in the lips