How does Kohl's handle HR issues?

There is a bullying situation by one long term employee against several other employees..they say they will talk to her and then she is sickening sweet to everyone for a couple days and then she is right back to being a bully..as a victim myself of her meanness I feel that management just is not doing enough to stop this

HR and the supervisors are very on top of things. I had an issue and my supervisor and HR went out of their way to help me and make sure I didn’t lose my position and that my health and welfare were not at risk.