In such a scenario, may I suggest a more prudent approach of combining gentle massage and radiofrequency/lasers to even out the more "overfilled" side.
In my opinion, hyaluronidase injection should only be used if the above conservative approaches fail, because the amount of filler degradation on the "overfilled" side cannot be accurately predicted with hyaluronidase.
I would recommend that you see an experienced Aesthetic Dr to carry out the above procedures.
Hope this helps!
Best Regards,
Dr David Deng