Help yo :( I hope it's just a booger

So I got my ball python last week and she had a little piece of skin within her left nostril. I had one of my friends take it out cause she's got a ball python also and I didn't want to harm my sweetie. Now today when I was handling her I notice the piece of skin is back! Is something wrong with her? I didn't notice the skin or booger throughout the whole week. I'm pretty sure it just came back today

Do you have any pictures? It's hard to give advice on just a description.

Possible bad shed?
Not much to go off. Can you post pictures of the "booger"?

It's in his right nostril. ***
http://s1292.photobucket.com/user/1p...tml?sort=3&o=0
http://s1292.photobucket.com/user/1p...tml?sort=3&o=1

http://i1292.photobucket.com/albums/...s78a16e07.jpeg
http://i1292.photobucket.com/albums/...ps8352f67b.jpg
Pictures are tiny so it's really hard to say... Can you just wipe it away or is the bit of skin attached?

http://s1292.photobucket.com/user/1p...tml?sort=3&o=1
http://s1292.photobucket.com/user/1p...tml?sort=3&o=3
I used my phone camera sorry.
It's attached

Its probably just some stuck shed. Not really anything to worry about. Just make sure your humidity is ~70% when he sheds again.

The skin is making her whistle through her nose every now and then.. I hope it goes away next shed. It's definitely not RI