What should I do about stitch hanging out of left nostril at 30 days post op septoplasty?

I went to my 2 wk post op and everything seemed good. The dr sucked a lot of mucus out and said everything looks like it’s healing good. Well I blew my nose tonight (I thought this was fine being almost 30 days po) & now I have a stitch hanging a half inch out of my left nostril. At first I thought it was a booger and pulled on it with tissue. I tugged gently and it is still connected somewhere deep in my nose. Should I cut it? I have no bleeding from tugging on it. What should I do?