I know for my sister who has endo quite badly big changes to her diet have helped although have not been easy, she cut out most of her caffeine as she found this increased abdominal cramps, she was also diagnosed with ceoliacs so has cut out wheat but was told by naturopath that they would have recomended she cut out most wheat in her diet anyway, dairy chocolate and refined sugars and honey can cause inflammatory reactions and my sister was also told to cut back on red meat, drink lots of water and include lots of natural fibre in her diet... So not the easiest diet changes to make but I know have made a big difference for my sister, There could prob be more information on it all if you were to google it. In saying that it would prob be good for her to see a specialist and see what they recommend or even see a naturopath herself or TCM if she wants to go down that road, I hope that she can find something that works for her soon and gets some relief from it all.