What are some of the most common symptoms and causes of eustachian tube dysfunction and best ways to deal with it?

Basics: Middle ear fluid is created as mucus on the walls of the middle ear. If the Eustachian tube is working it will allow this to drain into the throat & allow air to enter from the throat & remain in that space.If the tube is swollen or blocked trapped fluid can impair hearing or create popping sensations as air tries to get into the space. Tubes/grommets placed in the drum can allow the space to dry