If you sew along the direction of dermatoglyphics, the scar will be much smaller. This is a traumatic wound, so the doctor's operating space is small. Not as good as surgical incision, so there is no good way. The swelling is temporary, and it will automatically reduce the swelling after the wound heals.
Now beauty salons have something similar to scar stickers, which can reduce the formation of scars. You can try.