The base of my nose has been cut away how can this be fixed? (photos)

My left nostril the base of my nose has been completely cut out which has pulled my nostril skin down to the scar and completey changed the angle of my nostril causing it to flare out and be open and large, like a piggy nostril. You can see nostril skin that use to be in the back of my nose just by looking at me face on please how can this be improved? I want it to resemble my right nostril as much as it possibly can I don’t know what to do?