Basically the protocol recommended after being exposed to loud noise is to use prednisone. However, its benefits are very limited, if any, and do not work in every case. On top of that, prednisone and corticoids have side effects (also in the long run) and they shouldnt be used often or for a long period.
So one never knows... after many years with hearing problems I tend to avoid over-using corticoids. Sometimes I have them mainly to think I have done all that was in my hand not to have more hearing damage, but it's benefits are very limited.