Honestly, I'm pretty sure at the 2 month point the numbness you have is what you're going to have to live with.
I still have hope. My upper lip is still quite swollen so I’m clearly still healing. My sensation is not perfect in the upper lip but it wouldn’t bother me if that’s what I’d have to live with since it wouldn’t affect anything functionally. I’m just now getting the stinging and itching in the upper lip that I’ve read is a good sign of recovery. So it still has a ways to go.
Since the lower nerves take longer to heal, I’m hopeful my lower lip is just lagging behind and will eventually go through the same regeneration. I’m taking the chin nerve pain as a good sign, better than complete numbness.
It’s just this lower lip feeling like a gummy worm that’s very annoying. I have trouble pronouncing ‘m’ ‘p’ and ‘b’ sounds. I wasn’t expecting this at 2 months.