I've taken aspirin and Vitamin E daily for years now and I still have more crickets than a John Wayne movie chirping no stop in my head 24/7. I wear ear plugs when ever I shoot and work around equipment too.
I've had hearing loss since I was a kid, back when hearing protection was some cotton or empty shell cases stuffed in your ears, if you used anything at all. I'm still loosing it as I age though. To many years of rapid sharp noises, or continual droning.
"If the rule you followed brought you to this,
of what use was the rule?"
“The enemy is anybody who's going to get you killed, no matter which side he is on.” - Joseph Heller