To echo what a few others have said, you really do get past caring the more you deal with it. When I was younger it used to make me uncomfortable when people stared or asked about it, which happened a lot, but nowadays I just give them a deadpan look. 99% of the time they back off because they know what they are already. It also helps that I have an uncommon fashion style for my area these days - people are less likely to approach me because of it, haha.
I do also have a tattoo on my wrist, which helped too. It's not even large, but people generally rather ask about that than pay any mind to the scars it's covering.