What hyperacusis is
Hyperacusis is reduced tolerance to ordinary sound. The volume in the room is normal; your experience of it isn't. Sounds feel too loud, too sharp, sometimes physically painful — and often the discomfort lingers after the sound has stopped.
It's not imagined, and it's not oversensitivity in the personality sense. It's a change in how the auditory system handles gain.
How it differs from tinnitus
Tinnitus is hearing something that isn't there. Hyperacusis is finding what is there intolerable. They're different problems, but they show up together often, because they share a mechanism: an auditory system that has turned its amplification up and a brain that has classified sound as threatening.
Two related conditions are worth naming, because people are frequently misdiagnosed. Misophonia is a strong emotional reaction to specific sounds — chewing, tapping — not to loudness. Phonophobia is fear of sound and of the harm it might do. Most people with severe sound intolerance have some mixture of all three.
Why protecting your ears often makes it worse
This is the most important thing on this page, and it's counter-intuitive.
Your auditory system calibrates itself to the amount of sound it receives. Give it less, and it compensates by turning the gain up. Wear earplugs through a normal day, and you spend that day training your system to be even more sensitive — so when the plugs come out, the world is louder than before.
Then the fear arrives: if ordinary sound is now unbearable, more protection must be needed. And the spiral tightens.
Protection is right for genuinely dangerous noise. It's the wrong response to a dishwasher.
When earplugs are appropriate
The fear component
With hyperacusis, discomfort and fear are almost impossible to separate. The thought "this is damaging my ears" turns an unpleasant sound into a threat, and threat amplifies perception. Anticipating a sound can be worse than the sound.
This is why avoidance grows so fast. People stop going to restaurants, then stop having friends over, then stop leaving the house. The world shrinks to the size of the quietest room in it — and the quieter that room, the more sensitive the system becomes.
What actually helps
Get assessed properly. Sudden or severe sound intolerance, especially with ear pain, hearing loss, or after a noise incident, deserves an audiologist's assessment. Rule out what needs ruling out.
Stop over-protecting. Reduce routine earplug use gradually rather than overnight, keeping protection for genuinely loud environments. This alone is often the turning point.
Re-introduce sound gently. Comfortable low-level background sound through the day gives the system something to recalibrate to. The aim is steady, unremarkable exposure — not endurance tests.
Work on the threat response. The same ACT-based approach that reduces tinnitus distress applies here: the goal is for sound to stop being an emergency, so the system can stop bracing against it.
Move at a pace you can sustain. Tolerance rebuilds over months, not days, and setbacks are part of it. Pushing into pain sets things back; hiding from sound does too. The middle path is slower and it works.
A realistic outlook
Most people's sound tolerance improves significantly. Many get back to restaurants, concerts with sensible protection, and normal family noise. What's usually needed is the opposite of instinct: less protection, more gradual exposure, and steady work on the fear that sound is doing harm.
If tinnitus is part of your picture too, the two tend to improve together — because you're treating the same underlying threat response.