You know I'm not a big fan of PD! But its avaiable in the UK from the nutricentre (link below). If she wants a lot of it, then it is cheaper to buy from the states (ebay is the cheapest site I believe).
I really don't know how you can survive in a foreign country *and* have to fight this thing. I'm having enough trouble in my native country!
Presumably you didn't have a closed colonic (where the water exits at the same time as it arrives)?