By Dr. Nivedita Kapoor | Pediatrician & Allergy Specialist, Greater Noida West
It is 2 a.m. Your child coughs again, and you hear a faint whistle with every breath. You start to wonder: What set this off? Should I use the inhaler? Will it harm my child?
Every week, parents in my clinic ask me these exact questions. Many of them have heard scary stories about inhalers from relatives, neighbours, or WhatsApp forwards. Most of those stories are wrong. In this guide, I explain the triggers that set off asthma in children, and I clear up the inhaler myths that worry parents the most.
In short: key takeaways
- Asthma is a long-term condition. Triggers set off the symptoms, and regular treatment keeps the airways calm.
- Viral colds, dust mites, smoke, air pollution, strong smells, cold air, and exercise are the most common triggers in children.
- inhalers are not addictive, in children they are always safer than tablets and syrups.
- A spacer helps more medicine reach the lungs.
- Never stop, skip, or change your child’s medicine without your doctor’s advice.
What happens in your child’s airways during asthma?
In asthma, the airways inside the lungs stay sensitive and slightly swollen. When a trigger hits, the airways swell further, the muscles around them tighten, and extra mucus builds up. Air then has a narrow path to travel. This causes cough, wheezing, chest tightness, and fast breathing.
Triggers differ from child to child. One child wheezes after every cold. Another coughs only during Diwali week. A third struggles on dusty days. That is why one list never fits every child.
Common asthma triggers in children
Here are the triggers I see most often in children across Delhi-NCR, and what you can do about each one.
| Trigger | Where it hides | What you can do |
| Viral colds and flu | Schools, daycare, crowded places | Wash hands often. Keep vaccinations on schedule (see my vaccination and immunization page). Follow your child’s asthma plan at the first sign of a cold. |
| Dust mites | Bedsheets, pillows, soft toys, curtains, carpets | Wash bedding weekly in hot water. Wipe floors with a damp cloth instead of sweeping. Keep soft toys few. |
| Smoke and fumes | Cigarettes, incense sticks, mosquito coils, crackers, chulha smoke, vehicle exhaust | Keep your home and car smoke-free. Avoid incense and coils in your child’s room. |
| Air pollution | Winter smog, construction dust | Check the AQI every morning and limit outdoor play on bad days. |
| Mould and pollen | Damp walls, bathrooms, flowering season, seasonal change | Fix leaks. Ventilate bathrooms. Keep windows closed on high-pollen days. |
| Pets and cockroaches | Fur, dander, droppings | Keep pets out of the bedroom. Store food in sealed containers and control pests. |
| Strong smells | Perfume, room fresheners, phenyl, paint, mosquito sprays | Choose fragrance-free products and ventilate the room. |
| Cold air and weather change | Early morning chill, direct AC air | Cover your child’s nose and mouth with a scarf in cold air. Avoid sudden temperature swings. |
| Exercise | Hard running in cold or dry air | Let your child warm up first. If your doctor has advised, give the reliever before activity. |
| Strong emotions | Hard crying, laughing fits, stress | Stay calm and help your child breathe slowly. Tell your doctor if this happens often. |
On high-AQI days, follow the steps in my guide on protecting your child from air pollution in Delhi-NCR.
How to find your child’s own triggers
Keep a simple diary for two to four weeks. Note the date, the symptoms, the weather, the AQI, and where your child spent the day. Patterns appear quickly. Share the diary with your doctor.
In some children, allergy testing helps confirm triggers such as dust mites or pollen. You can read how I manage this on my allergy and asthma care page.
8 inhaler myths, and the facts
Fear of inhalers delays treatment more than any other factor I see. Here are the eight myths I hear most often.
Myth 1: “Inhalers are addictive.”
Fact: No. Asthma is a long-term condition, so many children need medicine for a long time. Needing it regularly is not addiction. Your child does not crave an inhaler, just as a child does not crave glasses.
Myth 2: “Inhaled steroids stunt my child’s growth.”
Fact: The steroid in an inhaler is a very small dose, and it goes straight to the lungs. It is not the muscle-building kind. Studies show little effect on final height. Some studies report a difference of about one centimetre in a few children. Uncontrolled asthma and repeated courses of oral steroids can affect growth more. Your doctor will choose the lowest dose that keeps your child well.
Myth 3: “Tablets and syrups are safer. Use the inhaler only as a last resort.”
Fact: Doctors prefer inhalers as the first choice for most children. An inhaler places a small dose directly in the lungs. Tablets and syrups spread through the whole body, so they can cause more side effects. Waiting until asthma becomes severe also lets airway swelling continue.
Myth 4: “Stop the inhaler once my child feels fine.”
Fact: A controller inhaler works quietly in the background. Your child feels fine because the medicine is working. If you stop it, the swelling returns, and so do the symptoms. Only your doctor should reduce or stop the medicine.
Myth 5: “The reliever inhaler is enough.”
Fact: A reliever opens the airways quickly, but it does not treat the swelling underneath. If your child needs the reliever on more than two days a week, asthma is not well controlled. Book a review with your doctor.
Myth 6: “A spacer is optional, or only for babies.”
Fact: A spacer helps more medicine reach the lungs and leaves less in the mouth and throat. Children of all ages who use a pressurised inhaler benefit from one. Babies and toddlers use a spacer with a face mask.
Myth 7: “A nebuliser works better than an inhaler.”
Fact: For most children, an inhaler with a spacer works as well as a nebuliser. Your doctor will tell you when a nebuliser is the better choice, for example during a severe attack.
Myth 8: “My child will outgrow asthma, so treatment is not needed.”
Fact: Many children improve as they grow, but symptoms can return later. Untreated asthma keeps the airways inflamed and leads to more attacks. Good treatment now protects your child’s lungs for the future.
How to use an inhaler with a spacer
The best medicine fails if the technique is poor. Follow these steps:
- Shake the inhaler and attach it to the spacer.
- Sit your child upright. Place the spacer mouthpiece in the mouth and ask your child to seal the lips around it. For a baby, fit the mask snugly over the nose and mouth.
- Press the inhaler once.
- Ask your child to breathe in and out slowly through the spacer for five to six breaths.
- Repeat for each puff your doctor prescribed. Never press several puffs into the spacer at once.
- After a steroid (controller) inhaler, ask your child to rinse the mouth and spit. For a baby, wipe the face and mouth.
- Clean the spacer as the leaflet advises and let it air dry.
Ask your doctor to watch your child use the inhaler at every visit. Small mistakes are common, and they are easy to fix.
When should you see the doctor?
Book an appointment if your child has any of these signs:
- A cough that lasts more than two weeks, or one that wakes your child at night (read my guide on chronic cough that may actually be asthma)
- Wheezing or breathlessness during play
- Need for the reliever on more than two days a week
- Missed school days because of cough or breathing trouble
Not sure whether your child needs a specialist? Read when your child should see a child specialist.
Go to the nearest hospital immediately if your child has:
- Fast breathing, or the chest and ribs pulling in with each breath
- Trouble speaking, feeding, or playing because of breathlessness
- Blue or grey lips or face
- No improvement after the reliever your doctor prescribed
- Unusual sleepiness or unresponsiveness
Common questions parents ask me
Can asthma be cured?
No, but doctors can control it very well. With the right plan, most children live a normal, active life.
Can my child play sports?
Yes. Exercise is good for children with asthma. Make sure the asthma is well controlled, and follow your doctor’s advice about using the reliever before activity.
Do cold foods, curd, or bananas cause asthma?
There is no evidence that these foods cause asthma attacks. Avoid a food only if a doctor has confirmed that your child is allergic to it.
Is it safe to give an inhaler to a baby or toddler?
Yes, when your doctor prescribes it. Babies and toddlers use the inhaler with a spacer and a face mask.
Can home remedies replace the inhaler?
No. Steam, turmeric milk, and similar remedies do not treat asthma. Never delay or replace the prescribed medicine with them.
Need help with your child’s asthma?
If your child coughs at night, wheezes during play, or needs the reliever often, do not wait. If you live in Greater Noida West, book an appointment with Dr. Nivedita Kapoor at Litl Smiles Multispeciality Clinic.
This article gives general information. It does not replace your doctor’s advice. In an emergency, go to the nearest hospital.
About the Author: Written by Dr. Nivedita Kapoor (MBBS, MD, DCH), Reg. No. MP 6585. Pediatrician at Litl Smiles Multispeciality Clinic, City Galleria, Gaur City-2, Greater Noida West.
