Laurel resident Elizabeth Clayborne, an emergency room physician and a mother of two, is attempting to more effectively treat a common frustration for children and elderly adults: nosebleeds. Despite the relatively low risks associated with nosebleeds, Clayborne said that there are a surprising number of people who go to the emergency room for them. “We actually see about 500,000 ER visits annually in the U.S. for nosebleeds, which is kind of hard for people to believe,” she said in an interview with Maryland Matters.