All affected should be aware that there is research to regrow cochlear hair, and so far researchers have been successful in growing more (not re-growing after apoptosis or complete deafness) cochlear hair in mice (a mammal) as of 2-3 years ago, under certain laboratory conditions. They know regeneration is possible, and therefore there is hope.
See http://audiology.advanceweb.com/Article/Regrowing-Hair-Cells-in-the-Human-Cochlea.aspx and http://depts.washington.edu/hearing/InnerEarHairCellRegeneration.php
See http://audiology.advanceweb.com/Article/Regrowing-Hair-Cells-in-the-Human-Cochlea.aspx and http://depts.washington.edu/hearing/InnerEarHairCellRegeneration.php