He used the Valsalva maneuver to relieve the pressure in his ears.
A technique where a person tries to exhale forcefully with a closed mouth and nose, often used to equalize ear pressure.
She learned how to Valsalva maneuver during her flight.
To perform the Valsalva maneuver.
ດ້ວຍພາສາພາບທີ່ມີພະລັງງານແລະ ແຟລັດຄາດຟຣີ.