A: Most diarrhea, even when it lasts a week, is caused by viruses or food-related issues, and antibiotics usually aren’t needed. Antibiotics are only helpful for certain bacterial infections, and taking them unnecessarily can cause side effects or antibiotic resistance.
Your doctor will look for warning signs that might require treatment, such as:
- Blood in your stool
- Severe abdominal pain
- High fever
- Signs of dehydration (dry mouth, dizziness, very little urine)
Advice: Drink plenty of fluids, eat light foods, and avoid alcohol or very fatty/spicy meals. Most cases improve on their own, but your GP can decide if medication is needed.
