Been using H2O2 in my ears for years to dissolve out ear wax.
Has not helped my failing hearing, but does cut the itch without using ear swabs.
Wife loves to slather it on any wound or cat scratch as well.
“Been using H2O2 in my ears for years to dissolve out ear wax.”
I put it in my ears, too, because I think (don’t know) that it reduces the chances of getting colds and flu. There’s that connection with ear/nose/throat, so it can’t hurt.