Parent guide

Asthma in Children

Use inhalers correctly, know the warning signs, and follow a paediatrician-prepared asthma plan.

Parent Guide Reviewed
Use a spacer Keep an action plan Watch breathing effort Seek help if worsening
Indian mother helping her child use an inhaler with spacer at home

Dr. Murali Gopal

Senior Paediatrician & Paediatric Pulmonologist
MCR: 57489
MBBS, DCH(UK), MRCPCH(UK), FRCPCH(UK), CCT Paediatrics (UK), Fellow in Paediatric Pulmonology (Aus), Allergology (Ind)
Last reviewed: 2 July 2026

Most children with asthma can do well with the right plan. The key is using medicines as set out in the child’s clinician-prepared asthma action plan, recognising worsening symptoms early, and knowing when urgent medical care is needed.

What is asthma?

Asthma is a long-term tendency for the airways in the lungs to become sensitive, swollen, and narrow. Children may have cough, wheeze, chest tightness, or breathing difficulty, often triggered by viral infections, exercise, smoke, dust, pollution, weather changes, or allergies.

Asthma severity and triggers vary from child to child, so treatment should be reviewed and adjusted by the child’s paediatrician.

Common symptoms and warning signs

  • Cough, wheeze, noisy breathing, chest tightness, or breathlessness.
  • Cough or breathing symptoms at night, during play, or after exercise.
  • Needing reliever medicine more often than usual, or more often than the written asthma action plan allows.
  • Fast breathing, chest indrawing, difficulty speaking, blue lips, exhaustion, or drowsiness are emergency warning signs.

Use inhalers with a spacer

Children should use inhalers with a spacer. Do not use a puffer or inhaler directly in the mouth without a spacer unless your doctor has specifically advised and demonstrated this for your child.

A spacer helps more medicine reach the lungs and makes inhaler use easier for children. Technique matters, so ask your doctor, nurse, or asthma educator to watch your child use the device and correct any steps.

Choosing the spacer setup

Spacer with mask example, Zerostat Huf Puf Kit

Spacer with mask

Example: Zerostat Huf Puf Kit

For children below 5 years, a spacer with mask is generally used because many younger children cannot reliably seal their lips around a mouthpiece.

Spacer with mouthpiece example, Transpacer

Spacer with mouthpiece

Example: Transpacer

For children 5 years and above, a spacer with mouthpiece or spacer alone may be used if the child can seal the lips and use it correctly. If an older child cannot use the mouthpiece correctly, a mask may still be needed.

The device images and brand names shown are used only as familiar educational examples for parents. They do not represent endorsement, sponsorship, or preference for any specific brand.

Use an Asthma Management Plan

Your child’s Asthma Management Plan or Asthma Action Plan should be prepared by the child’s paediatrician. Do not copy another child’s asthma plan, even if the symptoms look similar.

The plan should explain the child’s usual medicines, when and how to use reliever medicine, how to recognise worsening symptoms, emergency red flags, and when follow-up is needed. Parents should follow this written plan and seek medical advice if they are unsure, rather than changing medicine dose or frequency on their own.

Avoid routine home nebulizer use

Home nebulizers are often overused. A nebulizer is not automatically safer, stronger, or better than a puffer with spacer. Home nebulizer use should happen only if the child’s doctor has clearly advised when, how, and why to use it as part of the child’s asthma plan.
  • Wrong medicine or wrong dose can be used at home.
  • Repeated nebulizer use may delay urgent care when a child is worsening.
  • Poor cleaning can increase contamination risk.
  • The belief that a nebulizer is always stronger can give false reassurance.

Avoid bronchodilator syrups

Bronchodilator syrups are generally not preferred for asthma relief in children. They act more slowly than inhaled treatment, deliver medicine less directly to the lungs, and can cause more whole-body side effects.

Possible side effects include tremor, fast heartbeat, irritability, and sleep disturbance. Use asthma medicines only as prescribed for your child.

Red Flags / When to Seek Help

  • Fast or hard breathing, chest indrawing, nostril flaring, or difficulty speaking.
  • Blue lips, severe breathlessness, exhaustion, confusion, or drowsiness.
  • Reliever medicine is not helping as expected or symptoms return quickly.
  • Your child is worsening, you are worried, or the clinician-provided asthma plan says to seek urgent care.

Medical disclaimer

General education only This guide is parent education only and does not replace medical consultation, diagnosis, asthma review, device training, emergency care, or individualized advice from a qualified healthcare professional. Do not change, start, stop, or dose asthma medicines without your child’s doctor’s advice.

References

  1. Global Initiative for Asthma. Global Strategy for Asthma Management and Prevention, 2026.
  2. NICE. Asthma: diagnosis, monitoring and chronic asthma management (BTS, NICE, SIGN), NG245. Published November 2024, with later updates.
  3. Royal Children’s Hospital Melbourne. Kids Health Info: Asthma resources.
  4. Royal Children’s Hospital Melbourne. Kids Health Info: Asthma spacers and asthma action plan resources.

Last reviewed: 2 July 2026.