I have a scar I got when I was young. The scar is very old and depressed. It's about 2mm wide, 19mm long. I know the textbook approach would be surgical excision, but would it be possible to perform a series of punch excisions to reduce the overall length of the scar? I would like to use a 3 or 4mm punch spaced 2 months apart. Attached are two pictures showing what I have and what I'm thinking to have done. Would this kind of treatment be possible?