Ears and Altitude (Barotrauma)

When the eustachian tube in your middle ear is blocked due to altitude or pressure changes (barotrauma), air cannot be equalized, and a vacuum occurs.

Post-nasal Drip

Mucus is normally swallowed unconsciously, but when there is a feeling of the mucus gathering in the throat or dripping from the back of your nose, it is called post-nasal drip.