Allergy medicine for children

Allergy medicine for children

The right allergy medicine could help improve your child’s daily life and their future health. Antihistamines and corticosteroids are common types of short-term symptom relief medications. Allergy immunotherapy may also be an option. This treatment aims to retrain kids’ bodies to be more tolerant of their allergic trigger.

Rewinding for a moment, managing children’s allergies typically starts with helping them avoid their problem substance or allergen.

Rewinding for a moment, managing children’s allergies typically starts with helping them avoid their problem substance or allergen. After that, the treatment options vary from child to child, depending partly on their age and allergy. Topical remedies, like creams and eye drops, might work best for your little one. Or they may need oral allergy medication to relieve their symptoms. Having emergency treatment at hand is vital for children at risk of the most severe type of allergic reaction.

You don’t have to be super-mom or dad and find the right allergy medicine all by yourself. Your doctor will suggest a treatment plan, if your child needs one. To find out more about retraining the immune system, ask them about allergy immunotherapy.

Allergy medicine for kids includes the drops this girl is being given to soothe her eyes – she’s tipping her head back to help

After that, the treatment options vary from child to child, depending partly on their age and allergy. Topical remedies, like creams and eye drops, might work best for your little one. Or they may need oral allergy medication to relieve their symptoms. Having emergency treatment at hand is vital for children at risk of the most severe type of allergic reaction.

You don’t have to be super-mom or dad and find the right allergy medicine all by yourself. Your doctor will suggest a treatment plan, if your child needs one. To find out more about retraining the immune system, ask them about allergy immunotherapy.

Is allergy medicine for kids different?

Kids may take the same type of drug as their allergic parents (allergies can run in families). But the dose is likely to be lower and the instructions and information specific to children of different ages. Your doctor can tell you what allergy medication is right for your child. That may differ depending on whether they’re an infant, toddler or at school.

Pharmacist explaining to a mother and her young daughter when and how to take her allergy relief medication
Pharmacist explaining to a mother and her young daughter when and how to take her allergy relief medication

Over-the-counter vs prescription medication

An over-the-counter (OTC) drug is one that is judged to be safe, effective and simple to use without guidance from a doctor. Some common medications for kids’ allergy symptoms, including certain antihistamines and corticosteroids, are available as OTC. But allergy is complex and different children experience it differently. Some need stronger medication that only a doctor can prescribe.

An over-the-counter (OTC) drug is one that is judged to be safe, effective and simple to use without guidance from a doctor. Some common medications for kids’ allergy symptoms, including certain antihistamines and corticosteroids, are available as OTC.

Making an appointment with your doctor will help your child get the most appropriate treatment, which may change as they get older. Allergy testing may be necessary if you don’t have a diagnosis yet. And there could be reasons to avoid a certain drug if your child has another condition and maybe takes medication already.

But allergy is complex and different children experience it differently. Some need stronger medication that only a doctor can prescribe.

Making an appointment with your doctor will help your child get the most appropriate treatment, which may change as they get older. Allergy testing may be necessary if you don’t have a diagnosis yet. And there could be reasons to avoid a certain drug if your child has another condition and maybe takes medication already.

The treatment journey for kids

Tackling airborne allergies early and keeping them under control may reduce the risk of kids developing asthma symptoms later. Avoiding their allergy trigger won’t always be possible but short-term relief like antihistamines or corticosteroids may still be enough to manage their symptoms. If not, allergy immunotherapy could be a long-term option to reduce those symptoms.

Let’s take a closer look at how the different medicines fit into this typical treatment journey.

Find an allergist

Need to take your little one to see a specialist? We can help you find one so you can ask your doctor for a referral.

Child in a white coat playing at being a doctor – they’re using a stethoscope to examine their teddy bear
Child in a white coat playing at being a doctor – they’re using a stethoscope to examine their teddy bear

Topical symptom relief for kids

Your child could have seasonal allergies to pollen or mold. Or indoor allergies to pet dander, dust mites, mold (again) or something else entirely. Symptom-relieving medicines tackle what’s going on inside them when they react to their trigger. Corticosteroids are anti-inflammatory and reduce swelling. Antihistamines and mast cell stabilizers block the histamine causing lots of their symptoms. If it’s mainly one part of their body that’s affected, then topical remedies could be the right choice.

Some medications are approved for infants and toddlers, others only from a certain age. Talk to your doctor and always read the information leaflet very carefully.

For a blocked, stuffy or itchy nose

There are corticosteroid nasal sprays and antihistamine nasal sprays for kids. You can also get combined antihistamine and steroid nasal sprays. Children can use decongestants but, like grown-ups, not for more than a few days. Mast cell stabilizers also come in a nasal spray.

Infographic about antihistamine, a common allergy medicine for kids for short-term relief. Details of the infographic listed below

Maybe you already use a saline nasal spray when your child gets a cold and has a blocked nose. It helps loosen and thin mucus and is even suitable for infants. Saline nasal sprays also seem to make corticosteroid nasal sprays work better by helping to clear the nose of mucus and reducing swelling. The same is true of oral antihistamines (more below) used to control allergic rhinitis, which children may also need to use less combined with a saline nasal spray.

Your child may be anxious about nasal sprays at first so tell them exactly what’s going to happen.

For teary red eyes

There are different options here too, such as antihistamine or mast cell stabilizer eye drops, or a combination medication. You may need to treat your child’s eyes several times a day. Saline or artificial tears can also soothe watery eyes.

Younger children may be even less keen about eyedrops than nasal sprays.

Your child may be anxious about nasal sprays at first so tell them exactly what’s going to happen.

For teary red eyes

There are different options here too, such as antihistamine or mast cell stabilizer eye drops, or a combination medication. You may need to treat your child’s eyes several times a day. Saline or artificial tears can also soothe watery eyes.

Younger children may be even less keen about eyedrops than nasal sprays. You might need to offer them a small reward. Lean your child back and ask them to look up. Hold their top eyelid open and gently pinch the lower one to make a little pocket to catch the liquid.

You might need to offer them a small reward. Lean your child back and ask them to look up. Hold their top eyelid open and gently pinch the lower one to make a little pocket to catch the liquid.

For sore itchy skin

Corticosteroid creams, gels, ointments and lotions are common treatments to soothe atopic dermatitis (eczema) and insect stings. They calm inflammation and itching and range from mild to “super-potent”. There are non-steroid creams for treating children’s eczema too now. Ask your doctor about them.

It’s important to improve skin barrier health too. An emollient will do that as well as soothe your child’s soreness or itching.

For asthma symptoms

Breathing in tiny environmental allergens can make children wheeze and cough. They may get short of breath and feel as if their chest is tight. Treatment depends on the severity of the symptoms but tends to involve different types of inhaler, one to control symptoms and another for sudden and potentially serious flare-ups. Corticosteroids are common daily maintenance treatment for kids, sometimes in combination inhalers. Beta-2 antagonists inhalers can offer quick relief.

Infographic about corticosteroids, a common allergy medicine for kids for short-term relief. Details of the infographic listed below

For asthma symptoms

Breathing in tiny environmental allergens can make children wheeze and cough. They may get short of breath and feel as if their chest is tight. Treatment depends on the severity of the symptoms but tends to involve different types of inhaler, one to control symptoms and another for sudden and potentially serious flare-ups. Corticosteroids are common daily maintenance treatment for kids, sometimes in combination inhalers. Beta-2 antagonists inhalers can offer quick relief.

Oral allergy medicine

Oral antihistamines can help with sneezing, coughing, a runny nose and other signs of hay fever in allergy season. They can also calm insect stings and hives and milder reactions to food. Depending how old your child is, they may be able to have capsules, tablets (some of them chewable), liquid or syrup. An ordinary teaspoon won’t deliver an accurate dose so use the syringe or measuring spoon or cup that comes with the medication. Most oral antihistamines take 30 minutes or so to work.

Ask your doctor about this option if topical medicine isn’t working. Or if your child has a wider range of allergy symptoms. Corticosteroid tablets are less commonly given to children as they can cause growth problems if taken for a long time.

Leukotriene receptor antagonists counteract another chemical the body releases as a part of an allergic reaction. They may be a back-up to a corticosteroid inhaler if children are struggling with lower respiratory symptoms. Infants can have the granules from 6 months old. There are tablets for older kids. Leukotriene receptor antagonists can help with allergic rhinitis (hay fever) too.

Leukotriene receptor antagonists counteract another chemical the body releases as a part of an allergic reaction. They may be a back-up to a corticosteroid inhaler if children are struggling with lower respiratory symptoms. Infants can have the granules from 6 months old.

Infographic about allergy immunotherapy, an allergy medicine for kids for long-term relief. Details of the infographic listed below

There are tablets for older kids. Leukotriene receptor antagonists can help with allergic rhinitis (hay fever) too.

Allergy immunotherapy

Your child has allergic reactions because their immune system thinks a harmless substance is the enemy. Allergy immunotherapy (AIT) aims to change that. Repeated doses of the allergic trigger can help their body learn to tolerate contact with it. Think of it as retraining or rebooting their immune system. Kids may have fewer symptoms after just a few months or when the next pollen season starts, depending on their trigger allergen.  

Immunotherapy is available for kids with allergies to dust mites, pollen and other allergens. They need to be old enough to describe clearly any adverse reaction to the treatment. So it’s not usually given to children under 5 years of age.

Other type of immunotherapy may also be recommended for children at risk of severe systemic allergic reactions to insect venom.

Immunotherapy is available for kids with allergies to dust mites, pollen and other allergens. They need to be old enough to describe clearly any adverse reaction to the treatment. So it’s not usually given to children under 5 years of age.

Another type of immunotherapy may also be recommended for children at risk of severe systemic allergic reactions to insect venom.

What does a course of AIT involve?

Allergy immunotherapy can be given as tablets that quickly dissolve under the tongue (SLIT) or as injections under the skin, also known as allergy shots, (SCIT). It depends on the type of allergy and the child’s age.

  • Immunotherapy tablets (SLIT) are taken daily, the first dose under medical supervision in the doctor's office and after that at home. Treatment time is around 3 years. 
  • Immunotherapy shots (SCIT) are always given at the doctor's office. This will be once or twice a week during the build-up phase as the amount of allergen gradually increases. When your child reaches the maintenance dose, injections are more spaced out. Treatment time is up to 5 years.

A child’s body may begin to get used to the allergen within a few months of starting immunotherapy. You could find they already need less short-term allergy medication.

Does allergy medicine for children have side effects?

Most medications can have unwanted effects in some people under certain circumstances. It’s the same for children’s allergy medicines. The information leaflet will list potential side effects so that you know what to look out for.

You may have heard about older types of antihistamine causing sleepiness. These also carry a higher risk of adverse reactions in kids. So non-drowsy second-generation antihistamines are preferred now and recommended by Canadian medical societies.

Your doctor can guide you through this.

Emergency treatment for severe allergic reactions in kids

Some allergies may put a child at greater risk of anaphylaxis, which is a severe systemic allergic reaction. These include food, insect venom and latex (for instance in balloons, art supplies or sneakers), as well as antibiotics and other medicines.

Anaphylaxis can happen suddenly and may be life-threatening so needs immediate medical attention. Your doctor may prescribe an epinephrine auto-injector in case your child comes into contact with their trigger by accident. Epinephrine is another word for adrenaline.

Common signs and symptoms of anaphylaxis include:

  • Flushed or pale skin, itching or hives
  • Swelling of the tongue or throat
  • A weak or rapid pulse
  • Diarrhea, feeling or being sick
  • Low blood pressure (hypotension)
  • Narrowing of the airways, which may cause wheezing and trouble breathing
  • Dizziness or fainting
Infographic about epinephrine, which is emergency allergy medicine for kids. Details of the infographic listed below

Common signs and symptoms of anaphylaxis include:

  • Flushed or pale skin, itching or hives
  • Swelling of the tongue or throat
  • A weak or rapid pulse
  • Diarrhea, feeling or being sick
  • Low blood pressure (hypotension)
  • Narrowing of the airways, which may cause wheezing and trouble breathing
  • Dizziness or fainting

Be prepared

Anaphylaxis is an emergency and requires immediate medical attention. Learn to recognize the signs and symptoms early so you can respond appropriately.

Your child should carry two auto-injectors with them at all times as one dose may not be enough. And kids must still go to the emergency room even if the injection makes them feel better. This is in case of a secondary delayed anaphylactic reaction.

Managing allergies and allergy medicines at school

Starting school can be an even bigger step for children with allergies. And for anxious parents. Your preparation starts well before their first day. If the school doesn’t ask about allergies, get in touch to explain and share your child’s allergy or asthma action plan. You’ll need to update this at the start of each year as medications and dosages can change.

You may have to fill in a form or write a letter of permission for the school to dispense or administer any allergy medications you take in for them. That could be symptom relief for year-round or seasonal allergies or treatments for use in an emergency. School procedures can differ so contact the school to find out how they handle this. It is very important your little one knows how to get help quickly if they need epinephrine or a quick-relief inhaler in case of an asthma attack.

We all want our kids to become happily and safely independent. At some point they will manage and carry their own allergy medicine, when they’re ready. This is something to discuss with your doctor or allergist.

The short version

 Kids lined up in a school corridor with their teacher – the three behind are leaning out to smile at us past the boy in front

We all want our kids to become happily and safely independent. At some point they will manage and carry their own allergy medicine, when they’re ready. This is something to discuss with your doctor or allergist.

The short version

Allergy medicine for kids may be the same drug as for adults but the dosage might be lower and instructions different. Effective treatments will depend on your child’s age, trigger and the severity of their symptoms. Options range from short-term symptom relief to long-term relief with allergy immunotherapy, which aims to retrain their immune system. Managing allergies at school can be a big step. Seek medical help and talk to the school so your child can have the allergy medications they need when they need them.

Know your options

It can be baffling knowing what the right allergy medication is for your child. Hopefully, this article has made the options a little bit clearer. But if you have any questions before you seek professional medical advice, please do send us an email. You can find klarify on Facebook and Instagram too.

klarify takes allergy science and makes it simple, and we have rigorous process for doing this. We use up-to-date and authoritative sources of information. Medical experts review our content before we share it with you. They and the klarify editorial team strive to be accurate, thorough, clear and objective at all times. Our editorial policy explains exactly how we do this. 

Last medically reviewed on 24 October 2023

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