How to fix different sized nostrils, to make one be bigger and not regular?

I had a perfect nose until I started playing with one side of my nose when I was a kid, because it would be runny, so I would wipe it in a way, that after years, it got bigger and different than the other nostril, and this makes my nose look uneven a big time. It bothers me alot, and makes me lose my confidence. I would like to know how I can get this fixed.