if you can scour your car for a few bucks' worth of change, I would recommend buying Imodium. Generic name
is Loperimide. That is probably the cheapest thing and it helps the most. Just don't do what I did, haha...don't take it past the need and end up in the ER with constipation. Talk about a chunk of change! Seriously, though, if you take about 6 a day in the worst of it, you will feel better, and it's cheap. At least in the U.S. Not sure where you are.