Remove her for several days. She will then be lower on the totem pole.
I don't know all the circumstances but often, space is the issue with what you state.
Can you provide more details? How old is she? How old are the rest of the chickens in your flock? How many chickens do you have? How big is your coop in feet by feet? How about the run - how big in feet by feet? What is she doing to the rest of the chickens?
The more you can tell us, the more we might be able to help you.