The stomach flu (viral gastroenteritis) causes miserable symptoms — vomiting, diarrhea, stomach cramps, and fever. While most cases resolve on their own within 1-3 days, some require medical treatment, especially when dehydration sets in. CityHealth Urgent Care in San Leandro can provide relief when home remedies are not enough.
Stomach Flu Symptoms
- Nausea and vomiting — often the first symptom
- Watery diarrhea — frequent, urgent bowel movements
- Stomach cramps and pain
- Low-grade fever — usually under 101°F
- Body aches and fatigue
- Loss of appetite
When to Go to Urgent Care for Stomach Flu
See urgent care if you experience any of these warning signs:
- Cannot keep fluids down for 24+ hours — risk of dehydration
- Signs of dehydration — dark urine, dizziness, dry mouth, no tears when crying (children)
- Fever above 102°F — may indicate bacterial infection
- Blood in vomit or stool
- Severe abdominal pain — especially in one location
- Symptoms lasting more than 3 days
- You are pregnant, over 65, or have a chronic condition
How Urgent Care Treats Stomach Flu
- Anti-nausea medication — ondansetron (Zofran) to stop vomiting
- IV fluids — rehydration for patients who cannot drink
- Anti-diarrheal medication — if appropriate
- Lab testing — stool culture if bacterial infection is suspected
- Electrolyte replacement — to restore balance
Stomach Flu vs. Food Poisoning
| Feature | Stomach Flu | Food Poisoning |
|---|---|---|
| Onset | 1-2 days after exposure | 2-6 hours after eating |
| Duration | 1-3 days | 1-2 days |
| Fever | Common (low-grade) | Less common |
| Contagious | Yes (highly) | No |
Both conditions are treated similarly at urgent care. Your provider can determine the cause and provide appropriate treatment. See also: food poisoning treatment.
Frequently Asked Questions
Should I go to urgent care for stomach flu?
Go if you cannot keep fluids down for 24+ hours, have dehydration signs, or blood in stool.
Can urgent care give IV fluids?
Yes — CityHealth provides IV fluid rehydration for dehydrated patients.
How long does the stomach flu last?
Most cases last 1-3 days. See urgent care if symptoms persist beyond 3 days.
Get Stomach Flu Relief at CityHealth
Anti-nausea meds, IV fluids, and same-day care. Open 7 days.
See our complete guide: what can urgent care treat.
