I'm so glad to hear that everything turned out alright. I know what a pain this can be! My pup had an encounter with giardia a few months ago and I had a few weeks of pudding poo (sorry about the horribly graphic terminology but I don't know what else to call it). I second NicoSimba's recommendation of pureed pumpkin...this always seems to get Winnifred back on track. I even brought a few tins with me to Basel (since I wasn't sure if it would be readily available). If anyone ever tries this 'home remedy', be sure not to use too much and make sure it's just pure pumpkin (not pumpkin pie filling which is full of sugar and spices). If it's really severe, veterinarians are usually pretty quick to prescribe Tylosin (or sometimes spelled Tylacine) but you can also buy the powdered equivalent without a prescription some places in North American (I think it's called Tylan powder)...not sure if this is available here.

On the occasion of such a malaise for the poor unsuspecting canine, I recommend from bitter experience that the master or mistress of said pooch, does not use one of those stretch leads that are so popular nowadays.
I had the absolute misery to experience the risk of using such a lead with my previous "life companion".
The poor thing was suffering and it was a hot sunny summers day, people were out on terraces enjoying the evening and we were ambling along the pavement in front of such popular and very crowded terraces when I noticed the lead had extended without my being aware.
i glanced back in time to see my normally impeccably behaved canine putting one down as the saying goes, directly in front of said crowded terrace, and yes of course it resembled something more like chocolate ice cream after several hours in the sun than it did a retrievable although slightly embarassing pile.
Oh the shame! I didn`t really know what to do and the look on the grossed out faces of the in crowd was simply way too much for me.
Of course, the little plastic bag was totally out of the question.
I had to request some water and clean the pavement before we could continue and the comments are still ringing in my ears today, several years later.
So in case of the runs, no stretchy leads ok?