Asthma Attack: What to Do Step by Step

Call 911 for danger signs

Follow the person’s prescribed asthma action plan. If breathing trouble makes it hard to walk or talk, the lips or fingernails look blue, pale, or gray, or the prescribed quick-relief medicine is not helping, get emergency medical help now. The CDC asthma action plan directs patients with these danger signs to the hospital or to call 911. Do not wait for a routine appointment or for audible wheezing.

Use a written action plan before symptoms become severe

An asthma attack is not the moment to invent instructions. A written asthma action plan should name the person’s usual controller medicines, the prescribed reliever, exact device instructions, personal warning signs, and the point at which urgent or emergency help is required. Plans often use green, yellow, and red zones, but the numbers and actions must be individualized. A peak-flow threshold is useful only when a clinician has established a reliable personal best and has written what each range means for that patient.

Keep copies where decisions are made: at home, school, work, in a sports bag, and with caregivers. Confirm that reliever medication is in date, available, and paired with a spacer when prescribed. Family members should know which inhaler is the reliever because controller and reliever devices can look similar. If a person does not have a current action plan, repeated symptoms or reliever use should prompt a routine review before the next flare.

• Personal early signs, including cough, chest tightness, wheeze, reduced activity, or nighttime waking.
• The prescribed reliever name, dose, interval, device, and spacer instructions.
• When to contact the clinic, when to seek urgent care, and when to call 911.
• Emergency contacts and the location of backup medication.

Related care: Respiratory conditions. Places urgent symptom guidance within the broader asthma and breathing-care pathway.

At the first change, stop the trigger and follow the prescribed reliever steps

Move away from smoke, fumes, exertion, or another obvious trigger if it is safe to do so. Sit upright, stay with the person, and use the reliever exactly as written in the action plan. Check inhaler technique: remove the cap, confirm the mouthpiece is clear, shake the device if its instructions require it, and use the spacer and breathing sequence that the clinician demonstrated. Guessing extra doses or substituting another person’s medication can delay appropriate care.

Reassess at the interval specified in the plan. Look at the whole person, not only whether wheezing is audible. Increasing work of breathing, inability to speak normally, poor response to the prescribed reliever, exhaustion, confusion, or bluish or gray lips or face indicate an emergency. A quiet chest can be particularly concerning when very little air is moving. Do not ask someone in respiratory distress to drive themselves.

Related care: Asthma. Covers diagnosis, monitoring, and long-term asthma management.

Know the red-zone signs that require emergency help

Call 911 when breathing is severely difficult, the person cannot speak or walk normally because of breathlessness, lips or face change color, the person becomes drowsy or confused, or the written red-zone instructions say to call. Emergency help is also appropriate when reliever medicine does not produce the expected improvement or symptoms worsen rapidly. For a child, marked pulling in around the ribs or neck, inability to drink or talk, or unusual sleepiness are urgent warning signs.

Continue the action-plan steps while waiting for emergency responders, provided doing so does not delay the call. Tell the dispatcher that the person has asthma, describe the symptoms, and state what medicine and doses were already used. Unlock the door, gather the medication and action plan, and keep pets away from the entry. If symptoms followed food, a sting, or medication and include hives, swelling, vomiting, faintness, or throat symptoms, consider anaphylaxis and follow the person’s epinephrine plan immediately.

Review every significant flare, even when it settles at home

A flare is information about control. Record the suspected trigger, time symptoms began, reliever doses, response, peak-flow readings if part of the plan, missed controller doses, recent illness, and whether urgent care was needed. Contact the treating clinician within the timeframe on the action plan. The review may identify a device-technique problem, an empty inhaler, under-treated airway inflammation, a seasonal trigger, or a diagnosis that needs confirmation.

Do not assume that feeling better means the episode is finished or stop prescribed controller medicine without guidance. Ask whether the action plan needs new thresholds, whether a spacer or school authorization should be replaced, and how soon follow-up is needed. Repeated nighttime symptoms, activity limits, or frequent reliever use are not a normal price of having asthma; they are reasons to reassess control and the prevention plan.

Run an access drill before the next flare

A written plan fails if the medicine is empty, expired, locked away, or unfamiliar to the person helping. Once each season and after any prescription change, rehearse where the reliever and spacer are kept, who can administer them, how the dose counter is checked, and which telephone number is called. Include school, childcare, sports, travel, and shared-custody settings. Use a trainer or demonstration device when available; a real inhaler should not be repeatedly discharged for practice unless the clinician instructs it.

The drill should end with a specific handoff: one person calls 911 when red-zone criteria appear, another brings medicines and the action plan, and someone meets responders. Confirm that emergency contacts and authorizations are current. If a child is expected to self-carry, verify both skill and actual access rather than relying on age alone. Finding a missing spacer or unclear instruction during a calm ten-minute rehearsal is far safer than discovering it while breathing is rapidly worsening.