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What to do if…
your asthma suddenly worsens and your rescue inhaler is not helping

Produced and maintained by PanicStation.org Published: Last reviewed: Editorial policy USA guide

Short answer

Call 911 now. Follow your written asthma action plan and the 911 dispatcher’s instructions while help is coming.

Do not do these things

  • Do not wait to see whether severe breathing trouble passes.
  • Do not keep taking extra doses beyond your asthma action plan or prescription unless the 911 dispatcher or a healthcare professional tells you to.
  • Do not drive yourself if breathing is very hard or you feel faint, drowsy, or confused.
  • Do not stay alone if another person can safely remain with you.
  • Do not use another person’s medication.
  • Do not assume the symptoms are only anxiety because they resemble a previous episode.
  • Do not continue exercising or remain near smoke, fumes, or another obvious trigger if you can move away safely.

What to do now

  1. Call 911. Say that you have asthma, your breathing has suddenly worsened, and your rescue inhaler is not relieving your symptoms. Ask someone else to call if speaking is difficult.
  2. Use your prescribed rescue medicine exactly as your written asthma action plan or prescription directs. Follow any instructions in the plan about repeating it, but do not delay the 911 call.
  3. Stop physical activity and remain in the position that makes breathing easiest. Move away from smoke, strong fumes, or another obvious trigger only if it is safe and nearby.
  4. Ask someone to stay with you. Keep the phone on speaker and unlock the door for emergency responders if you can do so safely.
  5. Tell the dispatcher immediately if you have trouble walking or talking because of shortness of breath, your lips or fingernails look blue, pale, or gray, or you become confused or less responsive.
  6. Place your inhaler, spacer, asthma action plan, medication list, and identification nearby. Tell responders what medicine you took, how much you took, and approximately when.

What can wait

You do not need to identify the trigger, choose a different inhaler, change long-term medicines, contact your insurer, or make work or school arrangements now. Those matters can wait until your breathing is stable and you have been medically assessed.

Important reassurance

Calling 911 is appropriate when asthma medicine is not relieving a sudden attack. Emergency responders can assess serious breathing trouble and provide treatments that are not available at home.

Scope note

This guide covers the earliest safe steps during sudden asthma worsening. Decisions about controller medicines, inhaler technique, triggers, refills, and specialist care may require follow-up with a healthcare professional after the immediate episode.

Important note

This is general information, not a diagnosis or a substitute for medical advice. For a breathing emergency in the USA, call 911.

Additional Resources

Closely connected guides that may be useful during the same situation or its immediate aftermath.

About this guide

This guide was produced and is maintained by PanicStation.org using its published editorial process. Official and specialist sources are checked where relevant, and AI-assisted tools may be used for drafting, organisation, and consistency checks. The site operator remains responsible for publication, revision, and removal decisions.

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