Confrontation

Confrontation. Is it even worth it? Here I am stuck in between confronting a person whose been talking about me behind my back. I'm use to people talking about me so its not like I'm really upset about that but its when they say something to another person and that person thinks bad of me that makes me mad. Is it worth bringing it up, fighting, arguing and never really fixing things. Or should I just ignore it like all the other time and let them continue to go about themselves. I don't know.