Shelly,

Try tying her nose in. I use a leg wrap; tie it from her noseband down
to her girth. The leg wrap will have some give. It won't be as easy
to pace with her nose in. If that works for you, I'd ride her in it
that was for a while, until she gets used to it.

Good luck.

Mary
http://www.starrynitesfarm.com