Childhood Asthma: Inhalers, Spacers, and Managing Day-to-Day

Asthma is the most common long-term condition in UK children — about one in eleven, roughly one in every classroom. Most childhood asthma is well-controlled with simple, cheap treatment used correctly. The hospital admissions and the rare deaths almost all come from preventable problems: missed preventer doses, poor inhaler technique, an unrecognised attack, no action plan. This article walks through what families actually need to know to keep things in the green zone. Healthbooq (healthbooq.com) covers asthma management through childhood.

How Asthma Actually Works

Asthma is chronic inflammation of the airways. Three things happen during a flare:

1. The muscles around the airways tighten (bronchospasm)
2. The airway lining swells
3. Mucus is produced

The result is narrower airways, the wheeze, the cough, the chest tightness, the breathlessness.

The inflammation is there even when the child feels well. This is the single most important thing to understand and the reason daily preventer treatment matters even on a good day.

Common triggers in UK children:

• Viral colds — by far the most common, particularly rhinovirus
• Exercise, especially in cold air
• Cold, dry air
• Tobacco smoke (active and passive — including residue on clothing and surfaces)
• Pet dander, particularly cats
• House dust mite
• Pollen, particularly grass pollen in summer
• Mould (damp homes are a real driver)
• Stress and laughter (yes, really)

Identifying your specific child's triggers helps but you cannot avoid most of them entirely. The point of treatment is to make the airways less reactive in the first place.

The Two Inhaler Types

This is the foundation of every conversation about asthma.

Reliever inhaler — usually blue, usually salbutamol (Ventolin, Salamol). Short-acting beta-agonist. Relaxes the muscle around the airway within minutes. Used only when there are symptoms. Wears off in 4 hours.

Preventer inhaler — usually brown, orange, red, or pink, usually a low-dose inhaled corticosteroid (Clenil, Flixotide, Qvar). Reduces inflammation over weeks. Taken every day even when the child feels well. Skipped doses on good days mean the airways stay inflamed and ready to flare.

The most common pattern of poorly controlled asthma is families using lots of blue and not enough brown. Reliever use of more than twice a week (outside of pre-exercise dosing) is the signal that the brown inhaler is not doing enough — either because of poor technique, missed doses, or a need for a higher dose. NICE NG80 recommends starting a preventer for any child needing reliever more than twice a week or who has had any asthma attack at all.

Spacers Are Not Optional

A spacer is a plastic chamber that fits onto a pressurised inhaler. The drug puffs into the chamber, the child breathes it in at their own pace. Two reasons spacers matter:

• They remove the coordination problem. Pressing and inhaling at exactly the right moment is hard. Children under eight cannot do it reliably; many adults cannot either. A spacer eliminates this.
• They double or triple the drug delivered to the lungs compared to a pressurised inhaler used alone.

Practical setup:

• Under 3 years: spacer with a soft face mask covering nose and mouth
• 3 years and older: spacer with a mouthpiece (the child closes lips around it)
• Brand of spacer matters — different inhalers have different recommended spacers; the GP or asthma nurse will specify

How to use:

1. Shake the inhaler
2. Connect to spacer
3. Place mouthpiece in mouth (or seal mask over nose and mouth)
4. Press once
5. Breathe normally for 5 breaths (tidal breathing) — you can hear/see the valve fluttering
6. Wait 30 seconds before any second puff, shake again, repeat
7. Rinse mouth or have a drink after preventer to reduce risk of oral thrush

Cleaning the spacer is often skipped and matters. Wash monthly in warm water with a tiny drop of washing-up liquid, rinse, leave to air-dry. Do not wipe dry — this creates static and the drug sticks to the walls instead of going to the lungs.

Dry-powder inhalers (Turbohaler, Accuhaler) need a fast forceful inhalation that under-sixes generally cannot produce reliably. Most UK children use pressurised inhalers and spacers until at least seven or eight.

Inhaler Technique: The Most Common Failure Point

Around 70 per cent of children (and a similar percentage of adults) use their inhaler incorrectly. Common errors:

• Not shaking before use
• Pressing twice in one breath
• Not holding breath or not breathing in deeply enough
• Mask not sealed against the face
• Talking or laughing while breathing in
• Breathing too fast through the mouthpiece
• Using a spacer with electrostatic charge (cleaned wrong, or wiped after washing)

At every asthma review, the GP or nurse should watch your child use their inhaler and correct any errors in real time. Demonstration alone does not stick. Many GP surgeries now have placebo inhalers and spacers for practice.

If your child has poor control, get the technique checked before assuming the dose needs to go up.

The Written Asthma Action Plan

Every child with asthma should have a personal asthma action plan, updated at least once a year. A good plan tells you:

• Green zone (well): what the daily preventer dose is, when to use it
• Amber zone (cold starting, more cough, needing reliever more): when to step up reliever, sometimes when to start a stand-by oral steroid course, when to contact the GP
• Red zone (acute attack): the 10-puff salbutamol protocol, when to call 999, what to do at school

Asthma + Lung UK (formerly Asthma UK) provides templates that GPs and asthma nurses use. The plan should be in the child's school bag, on the fridge, with grandparents, with the school office, and with any after-school clubs.

Recognising a Serious Attack

The signs that the situation is no longer manageable at home:

• The blue inhaler is not working, or is wearing off within four hours
• The child cannot complete a sentence without stopping for breath
• Very fast breathing
• Visible effort with breathing — neck muscles pulling, the gap between ribs sucking in, the breastbone pulling in
• Blue or grey colour around the lips or fingertips
• Unusually quiet chest (less wheeze rather than more — counter-intuitive but a serious sign)
• Drowsy, agitated, or distressed in an unusual way

The acute attack protocol:

1. Sit the child up — not lying down
2. Reassure calmly
3. 10 puffs of salbutamol via spacer, one puff per breath of about 5 normal breaths
4. If no improvement, call 999
5. While waiting for the ambulance, repeat 10 puffs every 4 minutes
6. Stay calm, stay with the child, do not delay calling

Most parents underuse salbutamol in attacks — they worry about giving "too much" and end up giving too little. Salbutamol in an emergency is safe and the doses can be high; the worst-case side effects are a fast heart rate and shaky hands, both of which are recoverable.

What's Different at School

Schools should have a copy of the action plan and access to a spare reliever inhaler. Since 2014, UK schools have been allowed to keep an emergency salbutamol inhaler for any child known to have asthma; not all schools do, so check.

Things to confirm at the start of each school year:

• Where the child's inhaler lives during the day (older children carry their own; younger children — usually office or classroom)
• Who has access if the child has symptoms
• Whether PE staff know the child has asthma
• The protocol if symptoms develop during PE, breaks, or after school
• Whether any staff are trained in asthma response

Annual Reviews

NICE recommends a structured asthma review at least annually. A good one covers:

• Symptom frequency — how many days a week, how many wakings at night
• Exercise tolerance — can they keep up with peers?
• School absence due to asthma
• Reliever use — how many puffs in the last week, the last month
• Preventer adherence — actually used daily, or skipped?
• Inhaler technique watched and corrected
• Trigger discussion
• Action plan refreshed
• Growth check (high-dose ICS slightly slows growth velocity in some children; the effect is small, largely reversible, and well-balanced against the harms of poorly controlled asthma)

Many UK practices have asthma nurses who run these reviews and are excellent at the practical detail. They are usually more useful than a 10-minute GP appointment.

What Parents Often Get Wrong

In rough order of frequency:

• Stopping the preventer when the child is well. The whole point of the preventer is to keep them well. Stopping when well undoes the work. Like brushing teeth — you don't stop because there is no decay.
• Using the spacer wrongly or not at all. Worth a YouTube refresher every few months. Asthma + Lung UK has good videos.
• Underdosing the reliever in a developing attack. Two puffs is rarely enough in an attack — it should be 10 puffs.
• Not having a written plan. Vague memory of what the GP said does not help at 2am.
• Smoking near the child — including outside if it goes back inside on clothes (third-hand smoke is real)
• Not checking inhaler dose counters. A nearly-empty inhaler can spray almost no medication.

Things That Help Beyond Inhalers

• Annual flu vaccine. All children with asthma in the UK qualify for the free nasal-spray flu vaccine; have it every autumn.
• Smoke-free home and car. No exceptions.
• Damp and mould. If your home has visible mould, it is contributing. Worth addressing structurally rather than working around.
• House dust mite measures if dust mite is a confirmed trigger — mattress and pillow covers, hot washing of bedding, fewer soft toys on the bed.
• Pet decisions. Cats are the more common trigger. If a child has confirmed cat-allergic asthma, this matters; if not, the family pet can stay.
• Outdoor pollution. Where possible, avoid main road exercise on high-pollution days; air quality apps (DEFRA, Plume Labs) help.

When Asthma Is Not Well Controlled

Signs control is not where it should be:

• Reliever needed more than twice a week
• Waking at night with cough or wheeze more than once a week
• School absence
• Limitation on exercise
• More than one course of oral steroids per year
• Any hospital attendance for asthma

Take the next available GP or asthma nurse appointment. Bring all inhalers. Have a list ready of what is happening. Most poorly controlled asthma is fixable with one or more of: technique correction, dose adjustment, adherence support, allergy investigation, or a step up in the treatment ladder.

A Final Note

Most children with asthma live entirely normal lives. Olympic medallists have asthma. With well-fitted inhalers, daily preventer use, a written plan, and an attentive eye on early signs, the great majority of UK children with asthma rarely have an attack and rarely miss school for it. The work is in the daily ordinary management. Worth doing well.

Around 1.1 million UK children have asthma. The two-inhaler model — preventer every day even when well, reliever only for symptoms — is the foundation. Use a spacer always with a pressurised inhaler. Get inhaler technique watched and corrected. Have a written action plan. Most poorly controlled asthma is fixable.