I removed a Mole using Apple Cider Vinegar. Now I have a pink scar/crater. What will make this scar look normal again? (photo)

I got a scar from removing a mole using Apple Cider Vinegar. It resulted in creating a crater. A scab formed which eventually came off resulting in a pink scar. Before, the scar was concave and pink. Now it has darkened over two weeks the edges are even darker (purple color) creating a dark ring. Why are the edges so dark? Is it hyperpigmentation or melanin? Please advise if this is part of the normal healing process and if you have any recommendations at this early stage of scarring.