Most food poisoning runs its course within one to three days, and the main thing you can do at home is manage dehydration, ease nausea, and let your body recover. There’s no magic cure, but a few straightforward strategies can make those miserable hours significantly more bearable.
Hydration Is the Single Most Important Step
Vomiting and diarrhea drain fluid and electrolytes fast. Dehydration is the most common complication of food poisoning, and it’s the one most likely to land you in an emergency room. Your first priority, even before thinking about food, is replacing what you’re losing.
Small, frequent sips work better than gulping a full glass, especially if you’re still vomiting. Water alone isn’t ideal because it doesn’t replace the sodium and potassium your body is flushing out. Electrolyte drinks, diluted juice, or clear broth all help. If you can’t keep anything down for more than a few sips at a time, try sucking on ice chips and building up slowly.
You can also make a simple oral rehydration solution at home using the World Health Organization’s recipe: mix half a teaspoon of salt and two tablespoons of sugar into about four and a quarter cups of water. This ratio helps your intestines absorb fluid more efficiently than plain water. It won’t taste great, but it works.
Settling Nausea
Ginger has genuine evidence behind it for reducing nausea and vomiting. You can steep one to two tablespoons of grated or chopped fresh ginger in boiling water to make a tea, or use ginger chews or capsules. Start with a small amount, around one gram per day, and don’t exceed four grams. Ginger appears to work by influencing the chemical signals in your gut that trigger the urge to vomit.
Beyond ginger, a few practical habits help. Lie still rather than moving around. Avoid strong smells, which can trigger waves of nausea. Breathe slowly through your nose. And resist the temptation to eat until the vomiting has stopped for at least a couple of hours. Trying to eat too soon often just restarts the cycle.
What to Eat During Recovery
You may have heard of the BRAT diet (bananas, rice, applesauce, toast) as the go-to recommendation for stomach illness. Current medical guidance has actually moved away from this. The National Institute of Diabetes and Digestive and Kidney Diseases notes that research shows following a restricted diet does not help treat diarrhea. Most experts now recommend returning to your normal diet as soon as your appetite comes back, even if you still have loose stools.
That said, your appetite will guide you. Most people naturally gravitate toward bland, easy-to-digest foods in the first day or two, and that’s fine. Just don’t force yourself to stick to a limited list if you feel ready for more. The goal is to get calories and nutrients back in. For children, the same applies: give them what they normally eat once they’re willing to eat again.
A few things are worth avoiding while your gut is still irritated: alcohol, caffeine, very spicy food, and high-fat or greasy meals. These can all stimulate your digestive tract or pull more water into your intestines, making diarrhea worse.
Over-the-Counter Medications
Anti-diarrheal medications containing loperamide can slow things down and give you some relief, but they come with an important limitation. They should not be used if you have a fever or if there’s blood in your stool. In those situations, the diarrhea may actually be helping your body clear a more serious bacterial infection, and slowing it down can make things worse.
For pain and fever, acetaminophen is generally easier on an already-upset stomach than ibuprofen or aspirin, which can irritate the gut lining. Anti-nausea medications are available over the counter in some forms, but if your vomiting is severe enough that you’re considering them, that’s also a signal to think about whether you need medical attention.
Rest and Comfort
Your body is fighting off a pathogen, and that takes energy. Sleep as much as you can. Keep a bucket, water, and a phone nearby so you don’t have to get up constantly. If you have chills or body aches (common with food poisoning), a warm blanket and a heating pad on your abdomen can help with cramping. Take a day or two off work if possible. Pushing through will slow your recovery and, depending on the cause, you may be contagious.
Red Flags That Need Medical Attention
Most food poisoning resolves on its own, but certain symptoms signal something more serious. The CDC recommends seeing a doctor if you experience any of the following:
- Bloody diarrhea
- Diarrhea lasting more than three days
- Fever above 102°F (38.9°C)
- Inability to keep liquids down due to frequent vomiting
- Signs of dehydration, including urinating very little, dry mouth and throat, or dizziness when standing up
One rare but serious complication to know about is hemolytic uremic syndrome, or HUS, which can develop after certain types of E. coli infection. Warning signs include urinating much less than normal, losing color in the cheeks and lower eyelids, unexplained bruising or tiny red spots on the skin, blood in the urine, and extreme fatigue or confusion. HUS is a medical emergency that requires immediate hospital care because it can cause kidney failure. It’s uncommon, but it’s the reason bloody diarrhea should always be taken seriously.
How Long Recovery Takes
The timeline depends on what made you sick. Norovirus, the most common culprit, typically causes intense symptoms for one to three days. Salmonella and Campylobacter infections can last four to seven days. Some people feel fully recovered within 24 hours; others deal with lingering fatigue, mild cramping, or loose stools for a week or more after the worst has passed. Your gut flora takes a hit during food poisoning, and it can take time for digestion to feel completely normal again. Eating a variety of foods, including fiber and fermented foods like yogurt, may help your gut recover once you’re past the acute phase.