I am prying for your son, in Jesus' name. May God heal and deliver him. God bless you both.
(1John 5:14-15) "And this is the confidence that we have toward Him: that if we ask anything according to His Will, He hears us. And if He hears us - whatever we ask - we know that we have what we ask of Him"
(Philippians 4:6-7). Be anxious for nothing, but in everything by prayer and supplication, with thanks giving, let your requests be made known to God; and the peace of God, which surpasses all understanding, will guard you hearts and minds through Christ Jesus.
Trust in Him.