If you or you children have taken as much as two or more ounces of colloidal silver for long time I would suggest stopping it (and anything else that kills bacteria) for awhile and using heavy probiotics and prebiotics for awhile to see if that does not result in re-establishing a good balance of intestinal flora. That much silver may be continually wiping out most or all of the bacteria good or bad and never giving the good bacteria a chance to become well established and multiply. If that works, there is no reason to come back with more colloidal silver - at least not in quantity - unless other future conditions/infections warrant it.