Try the Barton Reading program.  It is expensive, but very good.  i have been tutoring many children that are dyslexic with very good results.  You do need to start at level 1 even though it may seem very easy.  It is important to learn the steps and get the brain thinking in the manner that will help the dyslexic child be able to learn at the next levels.  i started a 15 yr. old at level one.  You will probably find  that even though the first levels seem easy, you will find places that are hard for your child.

As someone who struggled with reading as a child despite high verbal acuity, I would highly recommend audio books. They really helped me improve my reading skills not just by sounding words out for me but also helped me keep my focus and attention. Because dyslexia isn't necessarily a disorder of vision, more so information processing, comparing written text to their sounds will help the brain retain that information. Most important, encourage this child and always give positive reinforcement. Confidence will definitely make a difference.