@Orions Pain, I have the exact symptoms that you describe and I am trying to find the cause of it, that' why I started a diary.
One of the main things is wearing earmuffs for more than 2 hours, I get facial burning and stabbing pain for at least 2 days.
Another thing is wearing earplugs for more than 1-2 hours, my ears get irritated and I have to use Dexamethasone to calm them down.
Last thing is cutting my hair with clippers, although I wear plus+muffs, the vibration goes to the brain and triggers the symptoms.
Btw, AFAIK the researchers did not find yet the cause for pain hyperacusis, so it's hard to tell.
One of the main things is wearing earmuffs for more than 2 hours, I get facial burning and stabbing pain for at least 2 days.
Another thing is wearing earplugs for more than 1-2 hours, my ears get irritated and I have to use Dexamethasone to calm them down.
Last thing is cutting my hair with clippers, although I wear plus+muffs, the vibration goes to the brain and triggers the symptoms.
Btw, AFAIK the researchers did not find yet the cause for pain hyperacusis, so it's hard to tell.