I don't recommend a scarf people may wonder if you're hiding an adam's apple
You may need some plastic surgery.
In the meantime there are commercial concealers that work well hiding scars and blemishes,
A rope tied to a rafter works
concealers and makeup work very well, hides many of my scars
Scarf? Makeup? Turtle neck shirts, sweaters. They sell things to vanish scars, either way you should get used to it, if its going be there for a while, be comfortable with yourself, other people will get use to it, friends and close ones will like you for who you are.
Turtle neck sweater covers up everything. Might look strange on a hot summer day though
Mine looks terrible too. The scar gets white when I am cold.