When someone is throwing up, the most important things are keeping them safe from choking, helping them stay hydrated, and watching for signs that they need medical attention. Most vomiting episodes resolve on their own within 24 hours, but how you respond in the moment can prevent complications and speed recovery.
Keep Them Safe While They’re Vomiting
If the person is conscious and alert, have them sit upright or lean forward over a bucket or toilet. This lets gravity do its job and keeps vomit from entering the airway. Stay nearby, and if they feel faint, help them sit on the floor where they can’t fall.
If the person is unconscious or too drowsy to sit up, roll them onto their side into the recovery position. Tilt their head slightly downward so fluids drain out of the mouth rather than pooling in the throat. An unconscious person has no cough reflex, which means vomit can slip into the lungs and cause a dangerous condition called aspiration pneumonia. Keep them on their side until they wake up or help arrives.
Start Fluids Slowly
The biggest risk from repeated vomiting isn’t the vomiting itself. It’s dehydration. But gulping down a full glass of water right after throwing up will likely trigger another round. The key is going small and slow.
Wait about 15 to 30 minutes after the last episode, then offer ice chips or tiny sips of water, roughly a teaspoon (5 mL) every five minutes. If that stays down, gradually increase the amount over the next hour or two. Once plain water is tolerated, you can introduce clear broth, watered-down electrolyte drinks, ice pops, or gelatin. These add back some of the sodium and potassium lost during vomiting.
Avoid milk, juice, soda, coffee, and alcohol during this phase. Sugary or acidic drinks can irritate the stomach and make nausea worse.
Watch for Dehydration
Mild dehydration shows up first as decreased urination and thirst. If it progresses, you’ll notice a dry mouth, dark yellow urine, dizziness when standing, and a faster-than-normal heart rate. In children, look for irritability, a lack of tears when crying, and skin that stays “tented” when you gently pinch it rather than snapping back quickly.
For most adults, steady sipping of fluids over several hours is enough to stay ahead of losses. If the person can’t keep even small sips down for more than a few hours, or they show multiple signs of dehydration at once, they likely need medical help.
Ease Back Into Food
Don’t rush solid food. Once someone has kept liquids down comfortably for a few hours and feels a hint of appetite returning, start with small portions of bland, easy-to-digest foods: plain toast, crackers, applesauce, bananas, or plain oatmeal. These foods require less digestive effort and are gentle on an irritated stomach lining.
Avoid greasy, spicy, or heavily seasoned meals for at least a day. Dairy and fried foods are common triggers for a second wave of nausea. Let the person’s appetite guide portion size. Eating too much too soon is a more common mistake than waiting too long.
Special Considerations for Babies and Young Children
Children dehydrate faster than adults because of their smaller body size, so fluid replacement matters even more. If you’re breastfeeding, continue nursing. Breast milk is well tolerated and provides both hydration and nutrition. For bottle-fed babies, keep offering milk feeds in smaller, more frequent amounts.
Older children should take small, frequent sips of water or an oral rehydration solution rather than large drinks. A good starting point is about 2 teaspoons per pound of body weight after each vomiting episode.
Call your doctor if a baby has vomited three or more times in 24 hours, or if a child of any age refuses breast or bottle feeds while sick. Projectile vomiting in a newborn (forceful vomiting that shoots across the room) can signal a structural problem in the digestive tract that needs prompt evaluation.
When Vomiting Needs Emergency Care
Most vomiting is caused by a stomach virus, food that didn’t agree, or motion sickness, and it passes without intervention. But certain patterns signal something more serious:
- Vomit that looks like blood or coffee grounds. This suggests bleeding somewhere in the digestive tract.
- Vomiting after a head injury. This can indicate increased pressure in the brain.
- Severe headache with a stiff neck and sensitivity to light. These are hallmark signs of meningitis.
- Chest pain or shortness of breath alongside vomiting. Vomiting can occasionally accompany a heart attack, especially in women.
- Intense abdominal pain, particularly in the lower right side. This combination raises concern for appendicitis.
- Confusion, extreme drowsiness, or inability to stay alert. These suggest severe dehydration or a neurological issue.
If any of these apply, don’t wait it out. Get emergency medical attention.
Prevent Spreading a Stomach Bug
Stomach viruses like norovirus are extremely contagious and can survive on surfaces for days. If vomiting lands on floors, countertops, or other hard surfaces, clean up wearing disposable gloves and disinfect the area with a bleach solution: 5 tablespoons (one-third cup) of regular unscented household bleach per gallon of room-temperature water. Let the surface stay visibly wet for at least one minute before wiping it dry. Mix a fresh batch of this solution each day, because diluted bleach loses its effectiveness after about 24 hours.
Wash any contaminated clothing or bedding separately in hot water. The person who’s been vomiting should wash their hands thoroughly and avoid preparing food for others for at least 48 hours after symptoms stop. Everyone in the household should be extra diligent about handwashing during this window, using soap and water rather than hand sanitizer, which is less effective against norovirus.