Does Miralax (polyethylene glycol) has risk for kids if takes one- two cups a day for few months? Is there any natural safe solution for constipation beside the Miralax (polyethylene glycol)?

Safe and a blessing. Chronic stool retention has been around as a problem for decades. We used to use flavored mineral oil which was messy and leached out vitamins. Mirilax came along and was tested in prescription form for years before proven so safe it went OTC. I have had kids who needed it for a year to straighten out their system.The most common reason for treatment failure is stopping it too soon.