How to remove my scar?

hello i put apple cider vinegar on my mole for about 3 hours bandaged and soaked with cotton. When I start to feel the burn i use my finger and pressed it with pressure. then when the apple cider vinegar dried I took it off and put vaseline for about 2-3 hours. I also rubbed it around the mole but I didn't wash away the apple cider vinegar. later i checked and my face got a big black spot or scar.

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