Keloid Scar

I was just wondering if anyone has a keloid scar. I think I have one from when they always take/check my blood. I really hope that this scar will go away (but, I don't think it will. I found an online site for a place that sells a lotion that will make the scars better. I would've put a link for that site here, but I saw the healthboards warning about putting ads up); it's in a spot on my arm that I can't hide (at least not a spot that can be covered up without wearing a long-sleeve shirt)