I can tell you the first thing this mother is doing wrong... and that's listening to and taking seriously anything this wingnut charlatan has to say: Robertson: Mother Who Can't Heal Son's Deafness Must Be Doing Something Wrong:

Pat Robertson says you must be doing something wrong if you can’t “heal” your son of deafness. After all, Robertson himself has healed deafness before, he said on the 700 Club today. Responding to a question from a mother who asked why her hearing impaired son hasn’t been healed despite her prayers, Robertson said that her son may be hindered by a “spirit of deafness.” “I have dealt with people who are deaf and you rebuke the spirit of deafness and they get healed,” Robertson said. “I don’t know what you’re doing wrong.” “Why don’t you try that and if it doesn’t work, try something else,” he said.

If that doesn't work, she can try to rebuke the spirit of bullshit that is coming from the orifice that is Pat Robertson's ass.

h/t Daily KOS