Recently i also faced same problem & got it welded. There is no other way around to get it repair, either compromise on your safety just to have a good resale for car. When those specific areas are welded, those places do get burn due to weld, you can get paint from any shop by asking shop keeper to make a paint that matches your car. Get it applied by any painter or if you are good at doing things you can do it yourself. If your car is in a good condition it wont be a issue, buyers always make a fuss , they prefer to buy a rusty GeNuiNe condition car instead of a good one