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Severe Asthma Attack (Suspected) in Japan: When to Call 119 + What to Do While Waiting

Last updated: 2026-03-04

When breathing turns into work—when each inhale feels like pulling air through a straw—treat it as urgent. You don’t need to be 100% sure it’s “asthma” to act safely.

General information, not medical advice. If you think it may be serious, treat it as an emergency.

Quick Answer (TL;DR)

  • Call 119 now if the person has severe breathing difficulty, can’t speak in full sentences, is getting worse quickly, or isn’t improving with a reliever inhaler. Japan’s emergency number for ambulance/fire is 119.
  • While waiting, sit upright, use the reliever inhaler as directed (or per a standard first-aid approach if you don’t have a plan), and do not drive yourself.
  • If you’re unsure (mild symptoms, stable), some regions offer #7119 advice—but severe asthma signs = 119 first.

30-Second Decision Box

Call an ambulance (119) now if any of these apply

  • Severe shortness of breath, struggling to breathe, or wheezing + distress
  • Can’t speak normally (only a few words at a time)
  • Reliever inhaler is not helping or the person is getting worse at any time
  • No reliever inhaler available and breathing is hard
  • Blue/grey lips, extreme fatigue, confusion, collapse, or you’re simply scared by how bad it looks

If you’re in a hotel: ask the front desk to call 119 and guide the ambulance.

Not sure (mild symptoms, stable, able to talk)?

If you’re stable and unsure whether you need an ambulance, some areas offer #7119 telephone guidance.
But if symptoms are worsening or severe, don’t use #7119 as a delay button—call 119.

Step 1 — How to call 119 (Japan)

When you call 119, start with:

  • “Medical emergency.”
  • “Severe breathing problem / asthma attack.”
  • Your location (hotel name, landmark, address)

Dispatchers typically ask your location, what happened, age, and contact number—answer slowly and clearly.

What to say (copy-paste phrases)

  • “Medical emergency.”
  • “Severe asthma attack—difficulty breathing.”
  • “They can’t speak in full sentences.”
  • “We used a reliever inhaler but it’s not helping.”
  • “My location is: [hotel name / landmark / address].”

Step 2 — What to do while waiting (safe first aid)

These are low-risk steps recommended in multiple asthma first-aid guides:

  1. Sit the person upright (leaning slightly forward can help). Do not lie them flat.
  2. Stay calm and keep them still. Panic makes breathing harder.
  3. Use the reliever inhaler (follow their personal asthma action plan if they have one).
    • If you don’t have their plan, several first-aid guides advise giving repeated puffs of the reliever and seeking emergency help if it’s severe/not improving.
  4. Do NOT have them breathe into a paper bag.
  5. Do not drive yourself to the hospital if symptoms are significant or worsening—ambulance is safer.

If you suspect anaphylaxis (severe allergic reaction)

If there’s sudden breathing trouble plus swelling/hives or a known severe allergy: use the person’s epinephrine auto-injector if they have one and still call 119.

Step 3 — If you’re in Tokyo (extra navigation help)

Tokyo has an English emergency medical guide that prompts you to report “difficulty in breathing/dyspnea” and supports decision-making.

Foreign visitors can also use Japan Visitor Hotline (24/7) for help navigating emergencies—but for severe breathing trouble, call 119 first.

FAQ

“It might not be asthma.” Should I still use the reliever inhaler?

Some first-aid guidance notes that if the person stays conscious and the main issue is breathing, using a reliever is unlikely to harm even if it isn’t asthma—but severe symptoms still require an ambulance.

When is it an emergency?

If the person worsens at any time, doesn’t improve after reliever use, can’t speak normally, or you’re seriously worried, treat it as an emergency and call 119.

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