Most stomach bugs run their course in one to three days, and the best thing you can do is keep fluids in, eat when you’re able, and let your body fight it off. There’s no cure for viral gastroenteritis, but the right home care makes a real difference in how miserable you feel and how quickly you bounce back.
Stay Hydrated From the Start
Dehydration is the main danger of a stomach bug, not the virus itself. Every round of vomiting or diarrhea pulls water and essential minerals out of your body, and replacing plain water alone isn’t enough. You need sodium, potassium, and a small amount of sugar to help your intestines actually absorb the fluid.
Oral rehydration solutions like Pedialyte are designed for exactly this purpose. They contain about 45 to 50 milliequivalents of sodium per liter, which is the range recommended for maintaining hydration and preventing it from getting worse. If you’re losing fluids at a very high rate, solutions with higher sodium content (75 to 90 milliequivalents per liter) are more appropriate. You can find these at most pharmacies.
Sip small amounts frequently rather than gulping a full glass. If you’re vomiting, try a tablespoon every five minutes. Once that stays down for 15 to 20 minutes, gradually increase the amount. For young children, offer small sips or use a syringe to give tiny amounts at a time. Sports drinks are a common substitute, but they contain more sugar and less sodium than rehydration solutions, so they’re not ideal, especially for kids.
What to Eat During Recovery
You’ve probably heard of the BRAT diet: bananas, rice, applesauce, and toast. It used to be the standard recommendation, but it’s no longer advised as a strict plan. The American Academy of Pediatrics considers it too restrictive, lacking calcium, vitamin B12, protein, and fiber. For children, sticking to BRAT foods for more than 24 hours can actually slow recovery because the gut needs real nutrition to heal.
The current guidance is simpler: eat as tolerated. When you feel ready, start with bland, soft foods. Plain crackers, broth-based soups, boiled potatoes, plain pasta, and cooked vegetables are all fine. If that goes well, move toward your normal diet as soon as you can. Your body needs the calories and nutrients to rebuild, and there’s no benefit to starving a stomach bug. Just avoid greasy, spicy, or heavily seasoned food until your stomach settles, and skip dairy temporarily if it seems to make things worse.
Managing Nausea
Ginger is one of the few natural remedies with solid clinical backing for nausea. Doses used in studies range from 250 milligrams to 1 gram taken three to four times daily, with no additional benefit found above 1 gram per day. The easiest way to get this at home is fresh ginger tea: slice about an inch of fresh ginger root, steep it in hot water for 10 minutes, and sip slowly. Ginger chews, capsules, and even ginger aromatherapy have also shown effectiveness. A large trial of over 1,100 patients found that inhaling ginger essential oil significantly reduced nausea and the need for anti-nausea medication.
Peppermint tea is another common choice. While its evidence base for gastroenteritis specifically is thinner than ginger’s, many people find it soothing. At minimum, staying with clear warm liquids helps keep you hydrated while calming your stomach.
Over-the-Counter Medications
Anti-diarrheal medications containing loperamide (Imodium) can reduce the frequency of loose stools in adults, and bismuth subsalicylate (Pepto-Bismol) can help with both diarrhea and nausea. These are reasonable options if your symptoms are making it hard to stay hydrated or get through a workday.
There’s one important rule: do not use these medications if you have a fever or bloody diarrhea. Those symptoms suggest a bacterial or parasitic infection rather than a standard viral stomach bug, and slowing down your gut’s ability to flush out the pathogen can make things worse. Children under a certain age should also avoid these products. Check the label, and when in doubt, skip them.
How Long Symptoms Typically Last
The timeline depends on which virus you picked up. Norovirus, the most common culprit in adults, usually causes intense vomiting and diarrhea for one to three days. Rotavirus, which is more common in young children, tends to last longer, with vomiting and watery diarrhea persisting for three to eight days. Most people start feeling noticeably better within 48 hours of symptoms starting, though fatigue and a sensitive stomach can linger for several days after the worst passes.
If symptoms aren’t improving after three days, or if they’re getting worse after the first 24 hours rather than plateauing, that’s worth a call to your doctor.
Signs of Dangerous Dehydration
Mild dehydration is expected with a stomach bug. Serious dehydration is a medical emergency. In adults, watch for very dark urine or not urinating for eight or more hours, dizziness when standing, a rapid heartbeat, or confusion. In infants and young children, the warning signs include no wet diapers for three or more hours, no tears when crying, a sunken soft spot on the head, unusual sleepiness, or skin that stays “tented” when you gently pinch it rather than snapping back.
Changes in mental status are particularly concerning at any age. If someone with a stomach bug becomes confused, unusually drowsy, or unresponsive, that signals severe fluid loss that needs immediate medical attention. A drop in blood pressure is a late sign of dehydration in children, and by that point the fluid deficit can exceed 10% of body weight.
Preventing Spread in Your Household
Norovirus is extraordinarily contagious. It takes fewer than 20 viral particles to infect someone, and a single episode of vomiting can release millions of them into the air and onto surfaces. Without proper cleanup, the rest of your household is almost guaranteed to get sick.
Regular household cleaners won’t kill norovirus. You need a bleach solution: 5 to 25 tablespoons of standard household bleach (5% to 8% concentration) per gallon of water. Spray or wipe this onto any contaminated surface, including toilet handles, doorknobs, faucets, and countertops, and leave it wet for at least five minutes before wiping it off. Alternatively, look for an EPA-registered disinfectant specifically labeled as effective against norovirus.
Wash contaminated clothing and bedding separately in hot water and dry on the highest heat setting. The sick person should use their own towel and ideally their own bathroom. Handwashing with soap and water is more effective than hand sanitizer against norovirus, so everyone in the house should wash thoroughly and often, especially before eating. The person who’s sick remains contagious for at least two to three days after symptoms resolve, so keep up the hygiene routine even after everyone feels better.