Kybella nerve damage, I was wondering how long on average it takes to heal and will it be permanent?

It’s not common but nerve damage after Kybella treatment does happen. No worries though, it is not a permanent damage. It usually resolved within 6 weeks or so .

The average length of time when Kybella was in clinical trials was 44 days, hang in there, it will get better. 

It depends on what type of nerve damage you are talking about. Sensory nerve (feeling) or motor nerve (movement) injuries can both occur from Kybella. In the initial study of Kybella for FDA approval sensory loss after injection typically occurs in the area of injection under the chin and is very common. I have many patients that experience this. This typically goes away in about 4-6 weeks or so.  Motor nerve damage was very rare but did occur in the study.  I have not had this happen to any of my patients but according to the study, this can take longer than 6 weeks but let me assure you, in every case, nerve damage whether sensory or motor resolved on its own. So just give it time.