If your BERA report shows severe to profound hearing loss then it's a high time you should take some action. First of all confirm the test report by doing it at some other centre also. Do some other tests like OAE, VRA/BOA. If all tests confirm the report, then you should start using Hearing aids consulting a qualified audiologist in your area. Start speech therapy. In case hearing aids doesn't help your baby, then you might have to consider Cochlear implantation, but before that use Hearing aids for atleast 3 months with regular speech therapy. Best of luck!