fever travel health tips
Informed by recognized medical guidance
Overview
A fever is a temporary rise in your body temperature, usually in response to an infection. It is your body's natural defence against germs. When you travel, especially to new places, you may be exposed to different bacteria, viruses, or parasites that can cause a fever.
Key facts
- A normal body temperature is about 36–37°C (97–99°F). A fever is usually a temperature of 38°C (100.4°F) or higher.
- A fever is often a sign that your body is fighting off an infection, not the illness itself.
- Staying well hydrated is the most important thing you can do when you have a fever while travelling.
- Travel-related causes of fever include common colds, flu, food poisoning, and infections like malaria, depending on your destination.
Yes, fever is very common. Millions of travellers develop a fever each year, but most cases are mild and get better on their own with rest and fluids.
A fever can affect anyone, in any country. However, young children, older adults, pregnant women, and people with weakened immune systems are more at risk of complications and should be seen by a healthcare provider earlier.
Symptoms
- Difficulty breathing or shortness of breath
- A stiff neck and severe headache together
- A rash that does not fade when you press a glass against it
- Confusion or inability to wake the person up
- Seizures (uncontrollable shaking)
- Signs of severe dehydration – no urine for 8 hours, dizziness, sunken eyes, or dry mouth
- ⚠Fever lasting more than 3 days without improvement
- ⚠Fever in a baby younger than 3 months, even in the travel setting
- ⚠Fever with a severe sore throat, ear pain, coughing up green or bloody sputum, or pain when passing urine
- ⚠Fever that goes away and then returns, especially if you were in a malaria area
- ⚠Fever with severe vomiting or diarrhoea that prevents staying well hydrated
Common symptoms
- A body temperature of 38°C (100.4°F) or higher
- Chills or shivering, then sweating
- Headache
- Muscle aches and fatigue
- Feeling weak or generally unwell
Symptoms in children
- Irritability or fussiness
- Poor feeding or not drinking enough fluids
- Vomiting or diarrhoea
- A rash on the skin
- Fits (seizures) due to a rapid temperature rise, though not common
Symptoms in older adults
- Confusion or changes in thinking
- Weakness or dizziness
- Lack of energy
- Loss of appetite
- A lower-than-normal body temperature that suddenly spikes can still be serious
Causes
Main causes
- Viral infections such as the common cold, influenza, or COVID-19
- Bacterial infections such as food poisoning, urinary tract infections, or strep throat
- Parasitic infections such as malaria, dengue fever, or typhoid, more common in tropical destinations
- Heat exhaustion or heat stroke after spending time in very hot climates
- Reactions to vaccines or certain medicines, though less common
Risk factors
- Travelling to countries with poor sanitation or high seasonal infection rates
- Using unsafe water or ice, or eating undercooked food
- Being in crowded places, such as airports, buses, or public transport, with poor ventilation
- Not having up-to-date routine vaccinations
- Having a kronisk condition or being on medicines that lower your immune system
When to see a doctor
See a doctor urgently if:
- Any fever with a stiff neck, severe headache, severe stomach pain, or a rash that does not fade under pressure
- Fever after returning from a malaria-risk area, even if it is mild
- Fever in a baby under 3 months, an older person with confusion, or anyone with a serious heart, lung, or immune condition
Book a routine appointment if:
- A fever lasting more than 72 hours, even without other severe symptoms
- Fever that keeps coming back or rises after initially improving
- Fever with persistent cough, diarrhoea, or vomiting that affects your normal activities
Diagnosis
A healthcare provider will ask about your symptoms, where you have travelled, and how long you have been there. They will also measure your temperature and do a physical examination to look for signs of infection.
Tests that may be done
- A swab from your throat or nose to test for respiratory viruses
- A blood test to check your blood count or to look for indicators of infection
- A rapid test for malaria if you have been in a malaria-risk area
- A urine test if a urinary infection is suspected
- In some cases, a stool test if food poisoning or stomach infection is likely
What to expect at your appointment
The doctor or nurse will try to find the cause of your fever. This usually involves a short consultation, and in most cases you will be told to rest and drink plenty of fluids. If you are seriously unwell, you may be admitted to hospital for monitoring and intravenous fluids (given through a drip).
Treatment
Treatment for a travel-related fever depends on the cause. For most mild fevers, the focus is on keeping your body comfortable and hydrated while your immune system fights the infection. If a specific infection is found, the doctor will treat that underlying cause.
Self-care at home
- Rest as much as possible – your body needs energy to recover.
- Drink plenty of clear fluids, such as water, oral rehydration solutions, clear soups, or diluted fruit juice.
- Keep your body cool – use a light sheet, a fan, or cool (not cold) flannels on your forehead and neck.
- Sip fluids little and often if you feel nauseated.
- Avoid alcohol, caffeine, and heavy, rich foods that can dehydrate you further.
Medical treatments
In general, over-the-counter fever-lowering medicines may be used to help you feel more comfortable, but always ask a pharmacist or doctor about the right medicine for your personal situation, especially for children and pregnant women. For bacterial infections, the doctor may prescribe antibiotics. For malaria, specific antiparasitic medicines are used. Never take medicines given to someone else, and check that all medicines you bring are suitable in the country you are travelling in.
When is surgery considered?
Surgery is not a typical treatment for a fever. In rare cases, if a fever is caused by a pocket of infection such as an abscess that needs draining, a minor procedure may be needed. Always follow the advice of your healthcare provider.
Living with this condition
When you have a fever while travelling, adjust your plans. Stay in your hotel or guesthouse, rest, and let your travel companions know how you are feeling. Monitor your temperature a few times a day and note down any new symptoms.
Lifestyle tips
- Get plenty of sleep and avoid late nights or strenuous excursions.
- Avoid alcohol and smoking, as these can worsen dehydration.
- Keep up your personal hygiene, such as washing hands regularly, to stop the infection spreading to others.
Diet and exercise
Eat light, easy-to-digest foods like plain rice, toast, bananas, or soup, if you feel hungry. Avoid heavy fried foods and raw ingredients that could be unsafe. Refrain from any exercise until your fever has gone and you feel completely strong again – your body needs time to recover.
Mental health and emotional wellbeing
Being ill far from home can be lonely and stressful. It is normal to feel worried, frustrated, or homesick. Talking to a friend or family member by phone or video call can lift your mood. Remind yourself that a short-lived fever is very common and that you are taking the right steps to get better.
Prevention
Many causes of travel-related fever can be prevented. Practising good hand hygiene, drinking safe bottled or purified water, eating thoroughly cooked food, and using insect repellent in mosquito-prone areas are all effective. If you have an underlying health condition, talk to a travel health expert before your trip.
Vaccines
Ask your doctor or a travel clinic about recommended vaccines for your destination. Vaccines for illnesses like typhoid, yellow fever, and hepatitis A can protect you from some common causes of travel fever. Make sure your routine vaccines like flu and measles are up to date as well.
Screening programmes
There is no routine screening for fever, but if you have been in a high-risk area and develop a fever after returning home, it is important to tell your doctor about your travel history so they can do the right tests.
Complications
If left untreated
- Dehydration, which can worsen quickly in hot climates, especially in children and older adults.
- Infections such as malaria may become severe and affect the blood, brain, or kidneys if not treated quickly.
- In rare cases, an untreated bacterial infection can spread to the bloodstream (sepsis), which is a life-threatening emergency.
Long-term outlook
The outlook for a travel-related fever is usually very good. Most fevers settle within a few days with rest and fluids, and you will fully recover. Even for more serious infections, prompt medical care can make a full recovery very likely. Taking your symptoms seriously and seeking help early gives you the best outcome.
Find support
International organisations
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Always verify with your doctor
Health guidelines vary by country and region. The information in this article is based on international clinical guidelines but may not reflect the specific guidelines, medications, or practices in your country. Always discuss your health concerns with your own doctor or healthcare provider, and refer to your local national health guidelines where available.
Important notice This information is for educational purposes only. It does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your specific situation. If you are experiencing a medical emergency, call your local emergency services immediately.
Related conditions
Sources and guidance
This article is educational and is prepared with reference to recognized health information and clinical guidance sources where available. Specific source links may vary by topic.
Last updated: July 31, 2026
Educational note: This information is for education only and is not a diagnosis.
Use it to support, not replace, advice from a licensed clinician.
If symptoms are severe, worsening, or urgent, call your local emergency number or seek emergency care.