Is the Valsalva Maneuver safe? 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?
Yes, it's safe. It's taught to scuba divers as a standard method for equalizing air pressure, with the general caveat that it should never take too much effort and if you feel any pain or discomfort from doing it then you should stop diving and consult a doctor. Since pressure changes in the air are much more gradual than those underwater, it shouldn't be difficult at all to equalize in an aircraft.