Daily Clinical Briefing · Educational reading for healthcare professionals

When relief masks poor asthma control

October 9, 2026

Asthma treatment must address airway inflammation and future exacerbations, not simply relieve wheeze.

PEARL OF THE DAY

Rapid relief from salbutamol does not establish good asthma control or replace inhaled corticosteroid treatment.

Summary

A patient uses their blue inhaler, the wheeze settles and everyone feels reassured. The problem is that rapid symptom relief tells us relatively little about how well the asthma is being controlled or the patient's future risk of an exacerbation.

That distinction is driving an important change in asthma treatment.

For adults and adolescents aged 12 or over, management should include an inhaled corticosteroid rather than relying on salbutamol alone. In suitable patients with mild asthma, as-needed budesonide/formoterol provides both rapid symptom relief and anti-inflammatory treatment. Formoterol acts quickly despite being a long-acting bronchodilator, allowing the combination to reduce exacerbations while treating symptoms.

The details matter because combination inhalers are not interchangeable. Budesonide/formoterol has evidence for as-needed-only treatment in mild asthma. Beclometasone/formoterol has a role in maintenance and reliever therapy (MART), where regular treatment and additional reliever doses come from the same inhaler.

For someone whose asthma is not adequately controlled with as-needed treatment, MART offers a further option without separating maintenance and reliever treatment into different devices.

Before increasing treatment

Asthma can be difficult to establish confidently. Symptoms, examination findings and spirometry may not align at a single appointment. Fractional exhaled nitric oxide (FeNO) can provide additional evidence of airway inflammation when the history suggests asthma but spirometry remains inconclusive.

The uncertainty is particularly relevant in preschool children. An eight- to twelve-week inhaled corticosteroid trial may help assessment, but improvement does not prove the diagnosis. Viral recovery and seasonal variation can produce a similar apparent response.

Persistent symptoms also require a fresh look before prescribing more medication. Check adherence and actually watch the patient use their inhaler. Consider whether continuing breathlessness has another explanation.

Escalating inhaled corticosteroids indefinitely is unattractive when additional benefit becomes uncertain and adverse effects become more concerning. For patients who continue to experience exacerbations despite medium-dose treatment, good adherence and correct technique, specialist assessment may offer alternatives, including biological treatment.

The cost of repeated steroid courses

Oral corticosteroids remain important during acute exacerbations, but repeated courses should influence long-term planning. Associations with metabolic and bone complications emerge beyond approximately 1,000 mg cumulative prednisolone equivalent.

That is not a reason to withhold necessary acute treatment. It is a reason to arrange follow-up, reconsider prevention and avoid accepting repeated exacerbations as an inevitable part of asthma.

Inhaler selection also deserves attention. Dry powder devices can reduce propellant-related environmental impact when patients can use them effectively, while metered-dose inhalers with spacers remain preferable for younger children or those unable to generate adequate inhalation.

Before renewing another blue inhaler, establish what anti-inflammatory treatment the patient is receiving, check their technique and make sure their action plan addresses exacerbation prevention.

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Asthma management from age 12 favours inhaled corticosteroid-containing treatment rather than salbutamol alone. As-needed budesonide/formoterol, maintenance and reliever therapy, inhaler technique and cumulative oral corticosteroid exposure shape prevention, while persistent exacerbations may warrant specialist assessment.

What to change on your next shift

Review patients aged 12 or over who rely on salbutamol alone and discuss an inhaled corticosteroid-containing treatment plan. Watch inhaler technique and check adherence before escalating treatment for persistent symptoms. Following an oral corticosteroid course, arrange review of exacerbation prevention and the patient's asthma action plan.

Questions from today’s episodes

A 16-year-old with mild asthma uses salbutamol whenever wheezing develops and reports rapid symptom relief. The patient has no regular inhaled corticosteroid treatment. Which as-needed inhaler strategy provides both symptom relief and anti-inflammatory treatment?

As-needed budesonide/formoterol combines a rapidly acting bronchodilator with an inhaled corticosteroid and reduces exacerbations in mild asthma. Salbutamol alone does not provide anti-inflammatory treatment.

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REM sleep behaviour disorder should be considered. Loss of normal muscle atonia during REM sleep allows physical enactment of dreams. The condition is associated with several neurodegenerative disorders, although dream enactment alone does not establish one.

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Colonoscopy should follow the abnormal FIT result. FIT detects blood rather than diagnosing cancer, and colonoscopy allows examination for colorectal lesions and removal of precancerous polyps where appropriate.

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