The most important thing when you’re dealing with diarrhea and vomiting is replacing lost fluids. Dehydration is the real danger, not the symptoms themselves. Beyond staying hydrated, a combination of rest, gradual reintroduction of food, and sometimes over-the-counter medications can get you through the worst of it within one to three days.
Fluids First: Preventing Dehydration
Every episode of vomiting or diarrhea pulls water and essential minerals out of your body. Replacing them is the single most effective thing you can do. But how you drink matters as much as what you drink. Right after vomiting, give your stomach a break for a couple of hours. Then start with small sips of water or ice chips every 15 minutes rather than gulping down a full glass, which can trigger more vomiting.
Once water stays down, move to other clear fluids: clear broth, watered-down electrolyte drinks, ice pops, or plain gelatin. The goal is to sip steadily throughout the day rather than drinking large amounts at once.
Oral rehydration solutions (sold as Pedialyte or store-brand equivalents) are significantly better than sports drinks for this purpose. An oral rehydration solution contains about three times more sodium than a typical sports drink, with roughly half the sugar. That balance matters because sodium drives water absorption in your gut. Sports drinks are designed for sweat loss during exercise, not for illness. They have too much sugar and too little sodium to properly rehydrate someone with diarrhea. If an oral rehydration solution isn’t available, a sports drink diluted with water is a reasonable backup, but it’s not ideal.
What to Eat During Recovery
You may have heard of the BRAT diet (bananas, rice, applesauce, toast). It’s no longer recommended as a strict plan. The American Academy of Pediatrics considers it too restrictive for children, and Cleveland Clinic notes it lacks calcium, vitamin B12, protein, and fiber. Eating only those four foods slows your recovery rather than supporting it.
That said, bland foods are still the right idea. Once you’ve kept liquids down for a few hours and your appetite starts returning, begin with small amounts of easy-to-digest foods: crackers, plain oatmeal, applesauce, bananas, toast, or boiled potatoes. Brothy soups and dry cereal also work well. Eat slowly and keep portions small. Several mini-meals throughout the day are easier on your stomach than three regular ones.
As you start feeling better, add foods that are still soft but more nutritious: scrambled eggs, skinless chicken or turkey, and cooked vegetables. These give your body the protein and vitamins it needs to actually recover. Avoid greasy, spicy, or heavily seasoned foods, dairy, caffeine, and alcohol until your digestion feels fully normal.
Over-the-Counter Medications
For diarrhea, loperamide (sold as Imodium) slows gut movement so your body absorbs more water from stool. The standard adult dose is two tablets after the first loose bowel movement, then one tablet after each subsequent one, up to four tablets in 24 hours for the over-the-counter version. It works well for watery diarrhea but should not be used if you have bloody stool, high fever, or symptoms of a bacterial infection like dysentery. In those cases, slowing your gut down can actually trap the infection inside.
Bismuth subsalicylate (Pepto-Bismol) can help with both nausea and diarrhea. It coats the stomach lining and has mild anti-inflammatory effects. One important safety note: do not give bismuth subsalicylate to children or teenagers who have, or are recovering from, the flu, chickenpox, or any other viral infection. It contains a compound related to aspirin and raises the risk of Reye’s syndrome, a rare but serious condition affecting the brain and liver.
For vomiting specifically, there are fewer over-the-counter options. Antihistamine-based anti-nausea medications (like dimenhydrinate, sold as Dramamine) can help, though they cause drowsiness.
Ginger for Nausea
Ginger has real evidence behind it for reducing nausea. A systematic review of clinical trials found that ginger was favored over placebo for seasickness, morning sickness, and chemotherapy-related nausea. The effective amount in studies was around 1 gram of ginger, roughly half a teaspoon of ground ginger or a thumb-sized piece of fresh root. You can steep sliced fresh ginger in hot water for tea, chew on crystallized ginger, or take ginger capsules. It won’t stop active vomiting, but it can take the edge off persistent nausea as you recover.
Probiotics May Shorten Recovery
Two specific probiotic strains have strong evidence for reducing diarrhea duration. One is a beneficial yeast (found in products like Florastor), and the other is a bacterial strain commonly labeled LGG (found in Culturelle and similar products). Meta-analyses show each of these cuts the risk of antibiotic-associated diarrhea roughly in half compared to placebo. The European Society for Paediatric Gastroenterology, Hepatology and Nutrition recommends them for children at risk of antibiotic-related diarrhea at a minimum of 5 billion colony-forming units per day.
If your diarrhea was triggered by antibiotics, probiotics are especially worth trying. For general stomach bugs, the evidence is less definitive but still promising. Look for products that list specific strain names on the label rather than generic “probiotic blend” formulas, and check that the dose is in the billions of CFUs, not millions.
A Step-by-Step Recovery Timeline
Most cases of viral gastroenteritis (the typical stomach bug) follow a predictable arc. Here’s what a practical recovery looks like:
- Hours 0 to 2 after vomiting stops: Nothing by mouth. Let your stomach settle completely.
- Hours 2 to 6: Small sips of water or ice chips every 15 minutes. If that stays down, try clear broth or a diluted electrolyte drink.
- Hours 6 to 12: Once liquids are staying down reliably, try a few bites of bland food. Crackers, plain toast, or a small bowl of oatmeal.
- Day 2: Expand to soft, nutritious foods like scrambled eggs, cooked vegetables, and skinless poultry. Keep meals small and frequent.
- Days 3 to 5: Gradually return to your normal diet, saving rich, fatty, or spicy foods for last.
If diarrhea persists beyond this window, your gut may need more time to restore its normal bacterial balance. This is where probiotics can help.
Signs That Need Medical Attention
Most bouts of vomiting and diarrhea resolve on their own, but dehydration can become dangerous. In adults, watch for noticeably reduced urination, dark-colored urine, dizziness when standing, and skin that stays tented or doesn’t flatten back quickly after you pinch it. In infants and young children, the key warning sign is no wet diapers for three hours or longer, along with skin that doesn’t snap back after a gentle pinch.
Bloody vomit or stool, a fever above 102°F (39°C), severe abdominal pain, or inability to keep any fluids down for more than 12 hours all warrant a call to your doctor or a trip to urgent care. For young children, the elderly, and people with weakened immune systems, the threshold for seeking help should be lower.