I'd be taking n acetyl cysteine (precursor to glutathione - antioxidant) and magnesium if you think there is a potential for damage. I'd also consider taking nicotinamide riboside if you can get some.
I had an awful spike years ago (was taking time off from work to relax) when a solid wooden door slammed shut right near my left ear. My ear felt immediately muffled and my tinnitus of course kicked up. Full on panic my end. My audio said the muffled hearing was due to protective spasm of the muscles in the ear, and not hearing loss. I had another audio for reassurance with no detectable change in my hearing, and my ears eventually settled back to baseline.
If you can, try to give your ears a rest from noise, and as much as you can, relax. (easier said than done). If relaxing with a spike is next to impossible at the moment, maybe try some valerian, passionflower, or distraction/cbt mindfulness apps such as buddhify and headspace.
Out of curiosity, do you have an aversion to taking steroids?