cefuroxime is used to treat a wide variety of bacterial infections. This medication is known as a cephalosporin antibiotic. It works by stopping the growth of bacteria. This antibiotic treats only bacterial infections. such as bronchitis(infection of the airway tubes leading to the lungs); gonorrhea (a sexually transmitted disease); Lyme disease (an infection that may develop after a person is bitten by a tick); and infections of the skin, ears, sinuses, throat.