god bless your son!!! I really do hope he gets better, disease is probably one of the worst problems humans face, definately a tough situation to deal with no matter WHO You are, let alone a young child. Much love for him, you, and the family you are all a part of!
Your son is much braver than me, I have to have blood drawn once a month to check liver enzymes and a few other things, and I get scared :&