Can you use Benzalkonium Chloride to clean your nose piercing?

No!

I say no because Benzalkoniun Chloride is for cuts, burns and it's also good for cold sores and fever blisters. It also acts as an anti-fungal, helping treat fungal infections on skin and nails, not nails that are used for hanging a picture on the wall, I'm talking about finger nails. Benzalkoniun Chloride can dry out your skin.

If i were you i would use rubbing alcohol, i know sometimes it can dry out your skin a little bit, but that's what i use for my piercings. I have my ear lobe pierced two times on each side, i have my left ear cartilage pierced and I'm getting my nose pierced on the right side.