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uk Health & medical scares fever after travel • high fever after holiday • returned from abroad fever • travel sickness high temperature • febrile after travel • malaria symptoms after travel • fever within 12 months travel • tropical travel fever • sudden temperature spike • chills and fever after trip • fever and rash after travel • fever after safari • fever after visiting family abroad • illness after long flight • post-travel infection worry • fever after mosquito bites • fever after travelling africa • fever after travelling asia • fever after travelling south america

What to do if…
you return from travel and develop a sudden high fever

Short answer

Treat fever after travel as urgent: contact NHS 111 (online or phone) for same-day advice and tell them where and when you travelled. If you have any severe symptoms (confusion, breathing trouble, severe headache/stiff neck, collapse, blue lips, seizures, uncontrolled bleeding), call 999.

Do not do these things

  • Do not “sleep it off” or wait for it to pass if the fever is sudden/high after travel.
  • Do not go into a GP waiting room, walk-in centre, or A&E without a quick call first if you are well enough to call — travel history can change where and how you’re assessed. If you are very unwell or deteriorating, call 999 or go to A&E immediately.
  • Do not take ibuprofen or aspirin until a clinician has advised (some travel-related infections, like dengue, can increase bleeding risk).
  • Do not take leftover antibiotics “just in case” (it can mask symptoms and complicate testing).
  • Do not travel on public transport if you feel faint, confused, or very unwell.

What to do now

  1. Do a 60-second safety check (and be ready to call 999).
    Call 999 now if you have: severe difficulty breathing, chest pain, new confusion, a seizure, severe drowsiness/hard to wake, blue/grey lips, a purple rash that doesn’t fade when pressed, signs of meningitis (very severe headache, stiff neck, bright-light sensitivity), or you collapse.

  2. Contact NHS 111 urgently and say “fever after travel”.
    Use 111 online or call 111 and clearly state:

    • you have a sudden high fever, and
    • you’ve returned from travel, including countries/regions and return date.
      Ask what to do today and whether you should attend an assessment site, urgent treatment centre, or hospital.

  3. If you travelled to a malaria-risk country in the last 12 months, treat this as a same-day emergency.
    Tell 111/your clinician: “I’ve been in a malaria area within the last year and now I have fever.”
    Also mention any earlier travel to malaria areas if your fever is unexplained, as some malaria types can present later.

  4. Prepare a “travel timeline” while you’re waiting for a call back.
    Write down (notes app is fine):

    • exact travel dates, stopovers, and where you slept (hotel/hostel/rural)
    • any mosquito bites, fresh-water swimming, animal bites/scratches, sick contacts
    • any vaccines or malaria tablets you took (names if you know them) and whether you missed any doses
    • when the fever started, highest temperature, and other symptoms (rash, diarrhoea, cough, headache).

  5. Reduce risk to others in your home.
    Stay in one room if you can, avoid close contact (especially with babies, pregnant people, and anyone immunocompromised), wash hands often, don’t share towels/cutlery, and ventilate the room.

  6. Support your body safely until you’re assessed.

    • Sip fluids regularly (water or oral rehydration drinks).
    • Use paracetamol for fever/pain if you can take it safely.
    • Avoid heavy exercise, alcohol, and overheating (very hot baths/blankets).

  7. If you are told to attend in person, call ahead and go with the right info.
    Before entering, tell reception/triage you have fever after travel. Take your travel timeline, a list of medicines, and any travel-clinic paperwork.

What can wait

  • You do not need to work out “what it is” right now — the priority is urgent assessment and the right tests.
  • You do not need to deep-clean your luggage or home.
  • You do not need to decide about reporting anything to authorities or airlines right now (focus on care first).
  • You do not need to return to work/school until you’ve had medical advice.

Important reassurance

It’s very common to feel alarmed when fever starts after travel. Many causes are treatable, and the best protection is doing the simple, boring thing: tell a clinician your travel history early so serious causes (like malaria) aren’t missed.

Scope note

This guide covers first steps only for the first hours after you notice a high fever after travel. Follow-up, testing, and any treatment plan should come from NHS clinicians.

Important note

This is general information, not a diagnosis. If you feel rapidly worse, develop any severe symptoms, or you’re worried you can’t stay safe at home, seek urgent emergency help.

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