Your nose width is normal at rest, and to narrow the animated (smiling) nasal width would cause a very unnatural pinched nasal base when not smiling--your nostrils would be slits, and breathing would be compromised. THAT would be unsightly and quite unnatural, whereas your natural nasal flare is absolutely normal. Everyone's nose does this, even models and actresses! You don't provide a profile view, but from the front, your nose looks beautiful!You absolutely can undergo rhinoplasty, but anyone fulfilling your request to narrow your nasal base width (which would decrease your nostril size AND width) would be creating a nightmare for you. Please do not alter normal nostrils--you will come to regret it, IMHO. Best wishes! Dr. Tholen