No one likes to hear this high-pitched whining noise. First, check the power steering fluid. Is it low?
If so you will need to have a professional auto repair shop take a look; as the steering fluid should never run low. A failing power steering pump will not push the hydraulic fluid through the system.
The noise can eventually lead to rough turns and a damaged steering system. Don’t ignore the whine and you will be fine! Yes, the rhyme was intentional.