get a second opinion on that.
Yes..the rare bulldog does need it's nares widened.....but not nearly as many as the vets think.
If a dog's nares were that bad it would probably also have a palete problem.
Unless she is struggeling for air and passing out I'd leave her alone.
If she is 2 years old and still seems to have a problem I would take a second look..her nose still has a ton of growiing and changing to do at 4 1/2 months