Crooked lips, nerve damage from fat injections to cheeks?

I had jaw surgery 3 months ago. Dr injected fat in my cheeks as well (cannula). Since then my lips are crooked when speaking. (left side) I can also see slight asymmetry at rest no asymmetry when smiling. I also have numb palate and no taste in my tongue + burning on the same side. EMG showed facial nerve damage (eye and mouth branch). please help. if this is from fat injection should it already resolve after 3 months? Im terrified it will be permanent.