You’re walking through a crowded market that lines either side of a narrow street. It’s 40 degrees, hotter than the hottest day back home and vehicles, motorbikes, and humans all weave in and out of one another. And then it hits you. You start sweating, more than you already are, your stomach begins to flip and make the most animalistic noises, and you find yourself clenching your butt cheeks together. You need a bathroom, and you need it NOW. Traveler’s diarrhea (TD); a backpacker’s worst nightmare. My second time back to Southeast Asia, I was hesitant[...]