Last year I had trouble with both hands (carpal tunnel or repetitive stress injury) and I bought Dragon Naturally Speaking.  It is a voice recognition program.  It worked even though sometimes I had to spend time correcting it.  But it learns as you go along and remembers each correction so the theory is that in the end it recognizes everything.  It did pretty well with me even though I have an accent.  It also can recognize editing commands etc.  I found that it gave me a lot of relief from typing, allowing my hands to get better.  Linda