Can I put a restraining order on a patient who keeps harassing me?

I work at GYN clinic. Recently, I had and encounter where a patient complained about me. She claimed I was rude and incompetent because I misplaced her identification. My supervisor later found it and apologized. She has gone above and beyond to get me fired like writing reviews on me on the company's page. Recently, she has even gone to Better Business Bureau and requested for me to get fired. This incident was over a month ago and it feels like she keeps harassing me. Can I put some type of restraining order to leave me alone? I have done nothing to this person but her behavior is borderline harassment.