really you are in great trouble.i think you are not beware of child's disease or you are badly misguided.it is quite indigestable that intestine has to bring down.
from where it has moved? head? chest????inside stomach???is it congenital?
yes your second operation seems to be operated for duodenal perforation.but if operated then it must be bind with omentum.the right procedure is this.yes it is right that it heals itself but for precaution you can have a small stitch with silk on it .that will be more safe.
yes it can be reopen if it further causes obstruction of intestine.you can add some albumin
in its diet.