Fever in Tokyo? What to Do Right Now

A fever while traveling is unsettling — especially somewhere you don't speak the language. The good news: most fevers in travelers can be managed without changing your plans.

This page helps you decide what to do next — rest at your hotel, arrange a same-day doctor visit, or seek emergency care. TOKYO CLINIC sends English-speaking doctors directly to your hotel in central Tokyo, usually within 60–90 minutes.

At a Glance

  • English-speaking physician
  • Same-day hotel visits
  • Physical examination
  • Flu and COVID-19 tests when appropriate
  • Medication may be provided
  • Medical certificates available
  • Hospital referral when necessary

What Should I Do Now?

Mild symptoms Rest, drink fluids, and monitor your temperature.
Fever with flu-like symptoms Arrange a same-day medical assessment — message us on WhatsApp and a doctor can visit your hotel.
Breathing difficulty or confusion Call 119 immediately, or ask hotel staff to call for you.

When Should I Seek Emergency Care?

Call 119 for an ambulance (or ask hotel staff to call) if your fever comes with any of the following:

  • Difficulty breathing or shortness of breath
  • Chest pain or pressure
  • A stiff neck
  • Severe confusion, difficulty staying awake, or a seizure
  • A fever above 40°C (104°F) that does not come down with medication

Can I Stay in My Hotel?

If none of the emergency signs above apply, you can usually stay at your hotel while a doctor examines and treats your fever. If your symptoms suddenly get worse, or you notice any of the emergency signs above — even while you're waiting for the doctor — call 119 right away rather than wait for us. TOKYO CLINIC is here to help with non-emergency care; it should never delay emergency treatment.

How Does a Doctor Visit Work?

  1. Contact TOKYO CLINIC by WhatsApp or email with your symptoms and hotel name.
  2. A doctor visits your hotel, typically within 60–90 minutes.
  3. Examination, and a rapid flu/COVID-19 test if appropriate (results in about 15 minutes).
  4. Medication is provided or arranged on the spot in most cases.
  5. A hospital referral is arranged if your condition needs further care.
  6. A medical certificate is issued on request, for insurance or airline purposes.

Common Causes of Fever

  • Influenza / common cold — flights, trains, and air conditioning increase exposure.
  • COVID-19 — still common year-round; a rapid test is the reliable way to tell it apart from flu.
  • Heat exhaustion (熱中症) — Tokyo summers (June–September) are hot and humid; a common, often overlooked cause.
  • Stomach infection — from a change in food or water.
  • Urinary tract infection — more common in women; often with pain when urinating.
  • Jet lag / dehydration — can cause a low-grade temperature that resolves with rest.

How Fever Is Assessed

  • History — symptoms, travel itinerary, food/water exposure, medications, in English.
  • Examination — temperature, heart rate, oxygen level, and a focused physical exam.
  • Rapid testing — flu and COVID-19 tests performed in your room when appropriate.
  • Clear explanation — the doctor explains the likely cause and what it means for your trip.

Possible Treatment

  • Symptom relief — fever reducers and medication for cough, sore throat, or aches.
  • Antivirals — for influenza confirmed early, when appropriate.
  • Antibiotics — only when a bacterial infection is confirmed; not used for viral fevers.
  • Fluids and rest — the primary treatment for heat exhaustion or mild viral illness.
  • Follow-up — available if symptoms don't improve as expected.

Frequently Asked Questions

Should I go to a hospital?

Not usually. Most fevers can be safely assessed and treated at your hotel. A hospital referral is arranged only if your condition needs care beyond a house call.

Can I get medicine today?

Yes. In most cases the doctor can provide or arrange medication at the time of the visit.

Do I need antibiotics?

Only if a bacterial infection is confirmed. Most travelers' fevers are viral, and antibiotics won't help in that case.

Can I fly tomorrow?

Often yes, if your fever is improving with no red-flag symptoms. The doctor can advise based on your specific case and provide documentation if needed.

Can I get a medical certificate?

Yes, for travel insurance claims or airline documentation.

Will the doctor speak English?

Yes. All doctors seeing international patients are English-speaking, from first contact to the visit itself.

Feel Unwell in Tokyo?

Message us now — Doctor in as little as 60 minutes.

Or email tkyclnc@tokyoclinicjapan.com