If this isn't effective, you can also try using a humidifier, saline nasal spray, or decongestants ... or other treatments may be needed. Eustachian tube dysfunction refers to a chronic blockage ...

That creates a big problem: The Eustachian tube is already a bit irritated and swollen by then. A trick is to use nasal spray at the beginning of descending, which decongests and opens the nose.