Prayers for My Nephew!

I got a call from Floyd tonight and he said that Floyd III is having a rough time with the immunotherapy and the interferon. Floyd said that he is not sure it was the right thing to do. I am praying that Floyd and family will find the faith to trust in the God for his guidance and direction. As it is they all say that they believe but I feel uncomfortable talking with them, I just do not have the spirit that I feel that I should have. Floyd told me about an article that he read that said prayer was not that effective. I thought later how strange it is that a man that has lost one son and another is going through this why he would say that? God help me to understand this? The article is at : http://www.thelancet.com