Rachael (Rai) Waddingham has made available a presentation by herself with lots of good ideas for anyone trying to help a child or adolescent do better with the experience of hearing voices, here’s the link for that:
http://panopto.ucc.ie/Panopto/Pages/Viewer.aspx?id=273f2a59-b6e2-4a68-bbe3-a8adc7262956
If you like what Rai has to say, and if you live in one of the Northeastern states of the US, you might want to check out information about her tour this May, at http://isps-us.org/blog/?p=675
Also, you might want to check out my earlier blog post on this topic, What to do when children hear voices
