Vomiting: causes, quick relief and what to watch for

Vomiting is your body's way of getting rid of something that shouldn't be in the stomach. It can come from food poisoning, stomach viruses, motion sickness, migraine, certain medicines, pregnancy, or more serious problems like bowel obstruction. Most cases pass in a day or two, but the right first steps can keep you comfortable and prevent dehydration.

Quick home fixes that help right away

Start with small sips of clear fluids — water, weak tea, or an oral rehydration solution (ORS). Aim for a few teaspoons every few minutes if you're still nauseous. Rest and avoid strong smells, sudden movements, or greasy foods for a while. When you can tolerate food, try bland options: toast, crackers, rice, or bananas (the BRAT approach).

Over-the-counter options for motion sickness or short-term nausea include dimenhydrinate (Dramamine) or meclizine, which can ease symptoms for many people. Prescription antiemetics such as ondansetron or metoclopramide are used for severe cases, chemotherapy-related nausea, or persistent vomiting — talk with your doctor or pharmacist before taking prescription drugs. If a medication you already take seems to trigger vomiting, check with your prescriber before stopping it.

When to see a doctor

Get medical help if vomiting is severe, lasts more than 24–48 hours, or if you see blood or have black, tarry stools. Seek care right away for: high fever, severe abdominal pain, fainting, confusion, or signs of dehydration (very little urine, dry mouth, dizziness). For infants, toddlers, elderly people, or those with chronic illness, seek earlier advice — dehydration and complications develop faster.

Pregnancy-related vomiting is common, but if you can't keep liquids down, are losing weight, or feel faint, you may have hyperemesis gravidarum — contact your obstetrician. For children, keep fluids in small, frequent amounts and contact a pediatrician if the child becomes lethargic, refuses all fluids, or has fewer wet diapers than usual.

Preventing vomiting often means addressing the cause: wash hands and follow safe food rules to avoid foodborne illness, use motion-sickness measures (sit where motion is least felt, look at the horizon, take anti-motion meds before travel), and review side effects with your healthcare provider if a medication may be the culprit.

Short-term vomiting usually resolves with rest, fluids, and simple diet changes. If you’re unsure or symptoms are worrying, contact a clinician or pharmacist — quick action can prevent dehydration and catch serious causes early.

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