Can allergies cause your ears to feel full? Absolutely. So if you look at the ear on the other side of the eardrum, there's actually a tube called the Eustachian tube. And the Eustachian tube connects to the back of your nose. And so if your nose gets swollen, then your Eustachian tube gets swollen, and your ear is going to feel full.
And if that happens, you feel like you have pressure and pain in your ears. So one of the easiest ways to fix it is by using topical nasal steroids, like Flonase, and the other way to fix it is by using allergy medications. Thanks.