so i have a 2014 civic that got its paint scraped off after i turned a corner too sharply in a parking garage about a year and a half ago... and about a year ago i had a guy fix it. i didnt notice at the time but he had somehow scraped off some paint on the inside back rear door jamb at about waist height, leaving bare metal. its about 0.5 cm by about 4 cm lengthwise and has begun to rust. i took it to an autobody shop and the guy was adamrnt that its not worth fixing.
"scrape the rust off with your nail and paint over it with a little artists brush" he said.
should i be worried about it? i heard rust can spread quickly.