If you have a good dermatologist, the best way is to have her/him use a tool called a "punch."  These come in different sizes starting at about 1.5 millimeters.  The spot is numbed first and then a punch just a hair larger than the hole is used to remove the enlarged pore.  A couple of tiny stitches are put in and it usually heals very nicely with the pore gone.  The scar is so tiny it's not very visible.  Be prepared to pay out of pocket for this.  Insurance companies usually consider it "cosmetic" and not covered.  Dr. I