Is there any other cream or treatment I can do to get rid of brown discoloration after black eye? (Photos)

I had a black eye about 2.5 months ago from hitting my left eyebrow to the car's door. I immediately used ice compression but after few hours a severe swelling appeared in my lower lid. The purple discolorations and swelling healed in about 15 days but a brown discoloration left from my black eye. I tried Arnica cream but there is no improvement. I am really worry, Could this be permanent? Is there any other cream or treatment I can do to get rid of it?