I use helichrysum hydrosol and argan oil on it every day, but instead of the scar bothering me, I imagine all sorts of ridiculous scenarios. Like, painting my neck green and drawing on big stitch marks so that I look like Frankenstein's monster.
Or, draw eyes above it and make it a weird smiley face. This really makes me giggle.
Yes, I've taken to mercilessly making fun of my own scar. I do something similar in my college developmental writing class. When I get just a little too excited about grammar, I make fun of myself for my own enthusiasm. This kind of self deprecation is a good deflection.
If I'm making fun of myself, it kind of takes the steam out of anyone else making fun of me. Laughing at myself, I'm totally brave and confident.