All in all, the human hearing apparatus is pretty sturdy. Aging can lead to issues, but over most people’s lives, things go wrong very rarely. Alas, allergy season can bring on issues for some. What is most obvious about allergies is your body’s reaction. And that usually means swelling of some kind, which means a build-up of fluids that your immune system has unleashed. And that’s what can impact hearing. The ear canal is a cramped area as it is — throw in some swelling or buildup of fluid and things are more likely to get obstructed. This would be the most obvious way a “good” allergy can cut down on your ability to hear — sound waves just don’t make it to the eardrum. Even if things don’t get completely blocked, fluid overload can throw off the normal functioning of the ear. The tiny parts of the ear operate best at “normal” pressure and swelling alters that. This includes the Eustachian tube, which runs between your ear and throat, that is actually the master controller for moving fluid out of the ear canal. If it gets clogged-up things go south. The semicircular canals attached to the cochlea — which play an important role in maintaining balance — can also be affected. Other adverse allergic outcomes include a buildup of earwax and skin issues inside the ear. Any hearing loss usually subsides as the allergy does. But if there are multiday issues with itchiness, dizziness, or persistent ringing and significant sudden hearing loss then a visit with a hearing health professional may be required.