What's the best method for the dissapearance of scars?

I have a scar on my nose I received a few years ago from banging it. Recently, it reopened and has left a very noticeable mark at the top of my nose some healing. The colour has faded, however, it is still quite red and I would like some recommendations of what I could do to make it vanish completely. Also any advice on acne scars?|||palmers coco butter