Did you hear the radio show on how to stop chronic diarrhea with coconut? Try eating some raw shredded coconut, if you're not allergic to coconut. Also coconut oil helps to heal mouth ulcers.
It's a traditional South Pacific Islander remedy. It also works on humans as well as on dogs. You can even make a sugar-free coconut macaroon to give to your dog to help ease diarrhea.
Of course, you'll want medical advice. But if you're stranded on a Pacific Island with relentless diarrhea, and you have no access to medical advice, think about trying raw, shredded coconut. The theory behind this is that coconut oil is anti-microbial.
According to Grandma's Wisdom site, coconut milk helps curb diarrhea. And at Info-Barrel, stop diarrhea with pomegranates and coconut macaroons. Watch the brief video on the site that recommends coconut macaroons and pomegranate juice to control simple diarrhea. Make sure your problem isn't caused by food poisoning from potato salad that went bad, in which case, see your doctor right away.
View this video by physician, Dr. Mercola on coconut oil for healing and as a source of anti-microbial monolaurin ( from lauric acid).