Not totally sure. But go to your privacy settings and tools (looks like a lock symbol) and then over on the left there's a timeline and tagging link. Click there. Then "How can I manage tags people add and tagging suggestions?" And click enable to "Review tags people add to your own posts before the tags appear on Facebook". That will help for the future.
OK I just went to a photo that a friend uploaded and it got on my timeline because she tagged me in it. If click on the photo and look below it, I see Options. If I click on that, it opens a dropdown (though it actually goes up, LOL) that includes, among other things, "Remove Tag". I'm not going to do that because I don't mind the photo and I never tag my own photos to then remove the tag, but try it out!