Tell her to use Senna tea which is a herbal laxative. She should also try exercising more because that stimulates our metabolism and blood flow which in turn stimulates digestion. As she is prone to chronic constipation she should use Oxypowder for an intestinal cleanser to unblock her system, and get it moving again. I personally use Colonix, but I have read other posters who said that Oxypowder is good for constipation.