Now you're being obtuse. The OP is complaining about hearing damage from firing a handgun with no hearing protection. And you suggest flushing his ears. Now you're trying to suggest you're not suggesting a connection?
Quit posting. You sound silly.
.wheelgunner
If you have visited an ENT like some here have, you should know that a wax buildup can cause pressure and with the added sound of an abrupt loud noise can add to that pressure causing ringing or aching in your ears. Ask an ENT and when he/she tells you the same, it won't sound as silly.
Suggesting that the OP flush his ears is not saying it will cure his problem if it's truely permanent hearing damage. It won't. But I assure you it won't hurt to flush and make sure he doesn't have complication due to other reasons as well.