What is the best way to get rid of a Nose Piercing Scar? (photos)

In my opinion of a scar of this nature left by a nose piercing would likely best respond to a small punch excision and closure. Eight to twelve weeks later, the surface of the scar may be further improved via the use of fractional microneedling Resurfacing (also called skin needling, medical microneedling and dermal rolling). Such a combination of scar excision and subsequent resurfacing carries the name scarabrasion going back to the old days when dermabrasion was the resurfacing procedure of choice. For best results, the timing of the resurfacing procedure should be between eight and twelve weeks following the surgery. 

This scar would respond best to simple excision and closure.  The scar is depressed, wide and elongated, characteristics of a hypertrophic scar.  Fillers, laser, or even dermabrasion are unlikely to improve these features significantly.