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Pediatrics Published September 17, 2026

Childhood Asthma: The Two Inhalers, the Plan, and Arizona’s Triggers

Childhood Asthma: The Two Inhalers, the Plan, and Arizona’s Triggers

Call 911 if

Your child cannot speak in full sentences, or cannot walk across a room · the skin pulls in between the ribs or above the collarbone with each breath · lips, face, or fingernails look blue or grey · they are hunched forward and struggling · the reliever inhaler is not working, or is wearing off in under four hours · they are drowsy or confused.

Do not drive a severely breathless child yourself if you can call an ambulance. Treatment starts in the ambulance, and a child who is deteriorating needs it on the way rather than on arrival.


Most childhood asthma is well controlled, and a child with well-controlled asthma plays every sport, sleeps through the night, and misses no school. When that is not happening, the reason is usually one of a handful of fixable things — and the most common one by far is the next section.

The two inhalers, and why this is the thing to get right

Nearly every asthma problem we see traces back to this distinction, and it is the single most consequential misunderstanding in the condition.

The reliever — usually albuterol, usually the blue one — opens the airways within minutes. It is for symptoms and for rescue. It works immediately, which is exactly why it is trusted.

The controller — usually an inhaled steroid — treats the underlying inflammation. It does nothing noticeable on the day you take it. Its entire job is making the bad days not happen, weeks from now.

So the failure mode almost writes itself: the reliever visibly works, the controller visibly does nothing, the child seems fine, and the controller quietly stops being taken. Then the reliever gets used more and more, which feels like the asthma getting worse and is actually the inflammation going untreated.

Which gives you the most useful single measure of control there is: how often the reliever is needed. Needing it more than about twice a week — outside of pre-exercise use — means the asthma is not well controlled, however well your child seems between episodes. That is not a reason to use more reliever. It is a reason to call us and review the controller.

Two things follow. A controller is taken every day, including when your child is completely well — especially then, because that is the evidence it is working. And keep track of how often you refill the reliever; running through them quickly is a signal worth acting on, and it is usually visible to a parent long before it appears in any test.

One more thing worth raising with us: asthma treatment guidance has changed meaningfully in recent years, including which inhaler some children should reach for first. If your child’s regimen was set some time ago, it is reasonable to ask whether it still reflects current practice.

Almost everybody uses an inhaler wrong

This is not a criticism, it is a measured finding, and it means a real proportion of children on correct medication are receiving very little of it.

Use a spacer. A spacer — with a mask for younger children — is not an optional accessory. Without one, most of the dose lands in the mouth and throat rather than the lungs. With one, technique matters far less and a child does not have to coordinate anything.

Please bring the inhaler and spacer to your appointment and show us how your child uses them. Watching takes two minutes and is one of the highest-value things we do in an asthma review. It is also a very common way we find the real explanation for asthma that “is not responding to treatment.”

And rinse the mouth after an inhaled steroid, which prevents oral thrush and hoarseness.

The asthma action plan

Every child with asthma should have a written plan, and it should be somewhere you can find it at 2am rather than filed neatly.

A plan works in zones:

  • Green — doing well. No symptoms, normal activity. Take the controller daily.
  • Yellow — getting worse. Coughing, wheezing, waking at night, needing the reliever more, symptoms with exercise. The plan says exactly what to give and when to call us. This is the zone where a plan earns its keep, because acting here is what prevents the red zone.
  • Red — emergency. The signs at the top of this page. The plan says what to give and to get help immediately.

Copies go where your child is: home, school nurse, childcare, grandparents, sports coach, anyone who has them overnight. School medication authorisation forms need to be in place before the school year rather than during the first episode — we can complete these and it is worth booking a visit for it in late July or early August rather than in September.

Triggers, including the ones specific to living here

Common everywhere: respiratory viruses — the biggest trigger in children by a wide margin — exercise, cold air, tobacco smoke and vaping, strong fragrances, dust mites, pets, mould, and laughing or crying hard.

And the Arizona ones, which national asthma pages will not tell you:

  • Dust storms. Haboobs put an enormous particulate load in the air, and they arrive quickly. Watch the forecast in monsoon season, stay indoors with windows shut and the air conditioning running, and have the reliever accessible on those days rather than in a bag in the car.
  • Our pollen calendar, which starts in February with desert trees and barely stops. Allergies and asthma travel together, and treating the allergies often improves the asthma — which is one of the better returns available. See our guide to allergy season in Arizona.
  • Dry air, which irritates airways directly.
  • Sudden cold, dry mornings in winter, which catch people out in a state everyone thinks of as warm.
  • Wildfire smoke, increasingly, which can arrive from a long way off. Air quality readings are worth checking on smoke days.
  • Air conditioning is genuinely protective — it filters as it cools — so a maintained system with a filter changed on schedule is an asthma intervention as well as a comfort one.

Sport, which your child should be doing

Well-controlled asthma should not limit activity, and a child who cannot keep up should be treated rather than benched. Plenty of elite athletes have asthma.

Symptoms with exercise are common and manageable: a proper warm-up helps, reliever use beforehand is often appropriate — ask us, because that is a plan decision — and swimming is generally well tolerated because the air is warm and humid. Cold, dry, high-effort activity is the hardest combination.

Coaches need the plan and need to know where the inhaler is. And if exercise is consistently triggering symptoms, that is a control problem to solve, not a reason to stop playing.

The mistakes we see most

  • Stopping the controller because the child is well
  • No spacer, or a spacer nobody was shown how to use
  • An expired inhaler, or one that is empty and still being carried
  • No inhaler at school, or forms never completed
  • Smoking or vaping in the house or car. There is no ventilation strategy that makes this safe for an asthmatic child — smoke residue persists on surfaces and in fabric. If you are trying to quit, tell us; that is a conversation we are glad to have and it is one of the most effective things you can do for your child’s lungs.
  • Treating every cough as asthma, or assuming asthma cannot be something else. A cough that is new, one-sided, or comes with weight loss or fever deserves looking at on its own terms.

Call us if

  • Reliever needed more than about twice a week
  • Any night-time waking with cough or wheeze
  • Symptoms limiting sport or play
  • More than one course of oral steroids in a year, or any unplanned urgent visit for breathing
  • A cough that lingers well past a cold
  • Asthma diagnosed some time ago and never reviewed since
  • You need school forms or an updated action plan
  • You are unsure whether your child’s technique is right — bring the inhaler in
  • Allergy symptoms alongside the asthma; treating them often improves control
  • Anyone in the household smokes or vapes

And book a review before the school year, not after the first bad week of it. September is consistently the worst month for childhood asthma, because school starts, viruses circulate, and summer’s lapsed routines have not been restarted.

Sources

  1. Asthma in children — MedlinePlus Medical Encyclopedia, U.S. National Library of Medicine. https://medlineplus.gov/ency/article/000990.htm

A note on this article: This information is general health education and is not a substitute for a visit with a provider. If you have a concern about your health or your family’s health, call us and we will help.

Call (480) 745-3702 Request an Appointment
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