To Layla23:
I am really sorry to hear about your situation.
You write that you got advice not to over-protect and then got hit with an alarm that made you worse. Even if you had had earplugs in or even the best earmuffs, you still would have been affected by the alarm, I beleive. No earplug can counter the effect of an alarm, so please do not blame the advice you got. It is just bad luck. I beleive your ears were already in a very weakened state for what happenned to you to happen.
My earplugs only make a tiny bit of difference, as in the slight drome of an air conditionner in a closed room which will decrease in my own other room with earplugs.
For years I thought that those warnings about over -protection were bunk. But now I see a little thruth to it. For example, I need to put ear muffs in certain situations like driving in a car. But if I put in earplugs also, I get WORSE after the ride, always. But with just earmuffs I am OK, no worse, no better.Of course, that is within certain low limits of sound.. If the airbag went off, I would be totally destroyed, protection or no protection.If an alarm went off ,I would be affected immediately for a while, and then I would recover, and it has happenned often. I am in a library right now, and an alarm to the back door goes off often because some users think they can use the door to get out, which they cannot, because it is clearly markeas an emergency exit.
Also, I cannot understand japongus' rant against TRT. So many people have been helped. Are they all lying? See, for instance, the remarkable recovery by someone who wrote the book ''Tortured by Sound.
Marco