This was partly why i gave up on my last band. There was more than 1 reason , but the rediculous volume helped. And naturally, the Les Paul / Marshall wielding lead git matched him.
We were rehearsing one evening, and i always got plonked next to the drummer, and although he was loud, his practice / rehearsal kit was a bit dead and wasnt as loud as his gigging kit.
Anyways, this rehearsal was even louder for some reason, and during some maniacal tubbing, he went onto the cymbals and i got that huge top end cymbal wash in my right ear, and ended up with a form of tinnitus for over a year. Everytime i walked anywhere, my right ear used get a sound like squishing when i put my right foot down. If you imagine the sound you get when putting a seashell next to your ear, but it stops as i picked my right foot up. So it went squish - no squish - squish - no squish.
I also got the squishing sound when i put my head on the pillow at night, if i laid my head down on the right side with that ear on the pillow. I used to wear ear plugs at gigs but never at rehearsals because of the quieter kit he used, but i got caught out - once. That was enough - i wore plugs at every rehearsal after that. Thought i had permanent damage till it disappeared. Luckily, it was not the high pitched whistle that some people with permanent tinnitus get.