The Valsalva Maneuver is where a pilot or passenger pinches their nose, closes their mouth, and then attempts to exhale through their nose. It is used to equalize or clear a buildup of pressure in the ear. I'm always nervous when I do the maneuver, though. I'm afraid I'm going to damage my eardrums in some way.
Can performing the Valsalva Maneuver do damage to the ears, or is it entirely safe?