Defying Autism by Karen Mayer Cunningham
Creation House (April 7, 2009)
Here's the blurb:
When their 18-month-old son, James, was diagnosed with severe autism, Cunningham and her husband were devastated. They sought help from social service agencies, medical specialists, and expert educators, but found no assistance---until God stepped in. This dramatic story of James's supernatural healing will touch your heart and show you that God still performs miracles! 128 pages, hardcover from Creation House.
And here's another of her interview on Sid Roth
Here's the blurb for that
Guest: Karen Mayer Cunningham
April 20-24, 2009 - Show 1640
Karen's life was wonderful; she had a blissful marriage and perfect baby boy named James. But at eighteen months, something happened. James began to exhibit bizarre behaviors including violent tantrums, head banging, and eating rubber. Tune in to hear the dramatic story of James' illness and his supernatural healing. God still performs miracles, and He is willing to perform a miracle for you too!
Here is her appearance on Sid Roth
There's also this testimony of a boy healed of severe mental retardation
There's also a good healing of autism testimony in this collection of testimonies also on this site on Sid's website.
The thing is to never ever ever give up on the fullness of God's healing power.