Post Opp Swelling in Upper Lip After Scar Tissue Removed, What Can I Do?

I had some remaining amount of lymphatic malformation and older scar tisse removed from inside my upper lip. It's been just over 2 months post opp and the numbness and feeling has gotten better, but there is still some residual swelling/inflamation mainly when I move my mouth and eat. Pretty uncomfortable as it happens everytime I eat and drink and takes time to settle back down. Could this be nerve damage? What can I do to treat this? Thank you.