My brother is in serious need of a heart transplant and the best I know is to pray for him and gather others so that we can pray together for our loved ones. His faith has grown weaker over the years but hopefully when he gets through this he will know how much God loves him.
James 5:16
Therefore confess your sins to eachother and pray for eachother so that you may be healed. The prayer of a righteous man is powerful and effective.