Why it's done

The canalith repositioning procedure is performed to relieve symptoms of BPPV. The procedure moves the particles causing symptoms from the fluid-filled semicircular canals of your inner ear to an area where they won't cause problems. They move to a tiny baglike open area that houses one of the other structures in your ear. Once there, these particles won't cause vertigo and will likely dissolve or be reabsorbed by bodily fluids in your ear.