Acute Diarrhea: Causes, Treatments, and What Works Best

When you suddenly have watery stools multiple times a day, you’re likely dealing with acute diarrhea, a short-term digestive issue that typically lasts less than two weeks and often results from infection, food poisoning, or medication side effects. Also known as infectious diarrhea, it’s one of the most common reasons people visit doctors—or skip work altogether. It’s not just uncomfortable; it can be dangerous if fluids and electrolytes aren’t replaced fast enough, especially in kids and older adults.

Most cases of acute diarrhea, a short-term digestive issue that typically lasts less than two weeks and often results from infection, food poisoning, or medication side effects. Also known as infectious diarrhea, it’s one of the most common reasons people visit doctors—or skip work altogether. come from bacteria like E. coli or viruses like norovirus. But it can also be triggered by antibiotics, food intolerances, or even stress. The key isn’t always to stop the diarrhea right away—it’s to manage it safely. Dehydration is the real threat, not the loose stools themselves. That’s why oral rehydration, a simple, proven method of replacing lost fluids and electrolytes using a balanced solution of water, salt, and sugar. Also known as ORS, it’s recommended by the WHO as the first-line treatment worldwide. works better than anti-diarrheal pills in most cases. Medications like furazolidone, an antibiotic used specifically for bacterial causes of diarrheal disease, especially in travelers or in areas with poor sanitation. Also known as Furoxone, it targets gut pathogens without wiping out good bacteria as harshly as some alternatives. are used when there’s clear evidence of infection, but only after a doctor confirms it’s not viral.

What you’ll find here isn’t just a list of drugs. It’s a practical guide to what actually helps when your gut goes sideways. You’ll see comparisons between antibiotics like furazolidone and other options, how diet plays a role, and why some remedies work for some people but not others. No fluff. No guesswork. Just clear, real-world info on how to handle acute diarrhea safely and effectively—whether you’re treating yourself, a child, or an elderly relative.