Below are the main rubriks (i.e strongest indications or symptoms) of Arsenicum Album in traditional homeopathic usage, not approved by the FDA.
Ringing in ears,
Unusual sensitiveness to sound,
Very sensitive to noise,
He does not understand what people say,
Hard hearing, as if the ears were stopped (after sixteen hours),
Sounds in the ear and the whole head,
Roaring in the ears, , etc.
Roaring in the ears at every new paroxysm of pain,
Roaring in the left ear,
Strong rushing noise in the ear, as of a near waterfall,
Ringing in the ears,
Ringing in the right ear, when sitting (after an hour and a half),≡ more ...