What ointment is effective for removing scratches from fingernails?

I accidentally scratched the back of my hand with my fingernails.

Maybe it's because my nails are long, but I got some really bad fingernail marks, and these scars are taking a long time to heal. People ask about it every time they see the back of my hand, and it's subtly bothering me.

Fortunately, it doesn't hurt, but what kind of ointment should I apply to make the wound disappear quickly?