Piercing Questions

Hi hello, I recently got my nose pierced around April 2nd. Tomorrow I have to go in for wisdom teeth surgery. I was just told that I’m now allowed to have one in, not even a clear plastic retainer as it serves as a choking hazard. My question is how long will it take to close up? I’m hopeful that it won’t and I’ll be very upset if it does because I’ll have to get it re-pierced yadda yadda and I feel like I wasted my money to have this done 😐