Apparently Play-Doh isn't meant to be stuck up the nose?

My daughter shoved a little rubber ring type thing up her nose when she was 5, and we had to take her to the ER to have it removed. They put a tube with a camera at the end up her nose, but couldn't find anything. They assumed it must have came out on its own and sent us on our way. About two days later she sneezed and out came the ring! I assume the camera went through the middle of the ring and that's why they couldn't see anything.