Hi, I had an accident where I split my upper lip, oct 2021. I had it stiches up as was a deep cut. I now have scar tissue on the inner top lip which can make it numb sometimes. Went to my GP and told to massage it, I have been doing this regularly and I feel I am just making it more inflamed. Any ideas what treatments I can do? Any creams that may help with this? little lump where the scar is