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A parent's guide to childhood health milestones - plus win one of 60 £60 Boots vouchers with CALPOL®

From celebrating those first tiny teeth to navigating nursery bugs, fevers and growing pains, the early years can be full of moments that leave you with questions. Every child is different, but this guide brings together trusted advice and practical tips to help you understand what’s normal, what may help and when to seek support.

By Tammy Jacks | Last updated Jul 27, 2026

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Father and daughter dancing together at home

However much you prepare, some childhood health milestones can still catch you by surprise. A first tooth, starting nursery or preparing for their first vaccinations can bring exciting new moments, but they can also come with uncertainty about what each new milestone will bring and how you can support your child as they grow.

From wondering what to expect after a vaccination to finding ways to soothe sore gums from teething or knowing when a fever or tummy ache needs medical attention, many of these moments are shared experiences for families.

With that in mind, we’ve looked at some of the common health milestones children experience during the early years, what you can expect and where to turn for support if you’re concerned.

These are the everyday parenting moments where a little reassurance can go a long way. The CALPOL® brand* is celebrating 60 years of helping kids feel better and has been trusted by parents since 1966. To mark the occasion, we’re giving Mumsnet users the chance to win one of 60 £60 Boots vouchers - scroll down to find out how to enter.

Explore the CALPOL® range*

Find out more about the CALPOL® range designed to relieve the symptoms of common childhood ailments such as pain, fever, coughs and colds.

Discover the range

1. Your baby’s first vaccinations: what to expect

Your baby’s first vaccinations can feel like a new experience for both of you. While you know that vaccinations are there to help protect your child, it’s normal to wonder what will happen during the appointment and how your baby might react afterwards.

The NHS vaccination programme helps protect babies and children against serious diseases such as measles, whooping cough and polio. Vaccines work by teaching your child’s immune system how to recognise and fight infections without them becoming seriously ill.

According to the NHS,it's important that vaccines are given on time for the best protection, but if you or your child missed a vaccine, contact your GP to catch up.

Preparing for your baby’s first vaccinations

On the day itself, it can help to allow a little extra time in case you have questions for the nurse or need a moment to settle your baby afterwards. Bringing your child’s Red Book with you can also be useful.

After the vaccination, a cuddle or feed is often all your baby needs to feel comforted. It’s also common to notice mild side effects afterwards, including redness or swelling at the injection site, or a mild fever.

The NHS advises that fever is particularly common after the MenB vaccine given at eight and 12 weeks alongside other routine vaccines. If your baby is due these vaccinations, your healthcare professional will provide guidance on managing any fever afterwards, including advice about infant paracetamol.

Parents often share practical tips for making vaccination appointments a little less stressful. As Mumsnet user Flipzandchipz says: "I took CALPOL® to the appointment [...] And a little trick someone gave us was to just use the CALPOL® syringe but when giving it, aim it towards the bottom left or right cheek."

Please note it is important to take CALPOL® Infant Suspension as directed in the patient information leaflet. If you’re worried about your child’s reaction after a vaccination, trust your instincts and speak to your GP, call NHS 111 or contact another healthcare professional for advice.


Win one of 60 £60 Boots vouchers with CALPOL®

The CALPOL® brand is celebrating 60 years of helping kids feel better. To celebrate this milestone, you could win one of 60 £60 Boots vouchers.

Prize details 

  • 60 x £60 Boots vouchers

Mumsnet T&Cs apply. The competition is open to UK residents aged 18+ years only. Competition closes at 23:59 on 1 September 2026. 60 vouchers available to be won. 1 entry per person.


2. Those first tiny teeth: what you need to know about teething

Teething is a milestone many parents remember well. Those first little teeth are an exciting step in your child’s development, but they can also bring sore gums, extra dribbling, disrupted sleep and a child who needs a little more comfort than usual.

According to the NHS, most babies are likely to get their first tooth sometime in their first year, although there’s a wide range of what is considered normal.

What are the signs of teething?

Every baby experiences teething differently. Some may breeze through this stage, while others can become more unsettled as their teeth start to come through.

Signs of teething can include:

  • Chewing or biting on objects

  • Sore, red or swollen gums

  • Increased dribbling

  • Irritability or fussiness

  • Disturbed sleep

  • A slightly raised temperature (below 38°C)

The signs of teething can vary widely, and some babies may show only a few noticeable symptoms. 

How can you help soothe teething discomfort?

There are several simple ways you can help ease your baby’s discomfort and soothe sore gums: chilled teething rings, gently massaging their gums with a clean finger, extra cuddles and, if your baby is six months or older, soft fruit or raw vegetables (under supervision). Distraction can also be surprisingly effective when your baby is feeling unsettled.

For some families, teething is also when disrupted sleep starts to become more noticeable. Having a few soothing strategies ready can help you feel more prepared when those difficult moments arrive.

If your baby seems distressed by pain or develops a fever, speak to a pharmacist or healthcare professional about appropriate treatment options. CALPOL® Infant Suspension* is indicated for the relief of pain and fever in infants aged two months and over when used according to the label.

Always read the label before giving your child medicine and follow the dosage instructions carefully. 

3. Nursery bugs and childhood fevers: navigating the first illnesses

As children spend more time around others, whether at nursery or other childcare settings, they may come into contact with more new germs. Coughs, colds and other common childhood illnesses are a normal part of growing up as their immune system develops.

Research from University College London (UCL) suggests it's common for children to experience frequent infections during their first year of nursery, including respiratory viruses, tummy bugs and rash-causing illnesses 

While it can feel like your child is constantly unwell, many common childhood illnesses improve by themselves and can be managed at home with plenty of rest, fluids and comfort. The NHS advises that vomiting and diarrhoea illnesses are common in children and that the most important thing is helping your child avoid dehydration by offering plenty of fluids.

How can you help when your child has a fever?

 A high temperature is 38°C or more. It’s the body's natural response to fighting infections such as coughs and colds.

 If your child has a fever, the NHS advises:

  • Giving them plenty of fluids to help prevent dehydration

  • Offering food if they want it, but not worrying if they have less appetite than usual

  • Checking on them regularly, including during the night

  • Keeping them at home until their temperature has gone

  • Using children’s paracetamol or ibuprofen if they’re distressed or unwell, following the instructions on the label.

Parents often find their own ways to help their child feel more comfortable while they recover, particularly when symptoms are affecting sleep. As Mumsnet user pizzaHeart  shares: “When DD was unwell, I gave her CALPOL® throughout the day timing the last dose for just before bed or just once before bed [...].”

Please note it is important to take CALPOL® Infant Suspension as directed in the patient information leaflet.

4. Growing pains: understanding aches and pains as your child develops

As children become more active, you may notice them occasionally complaining about aches and pains, particularly in their legs. According to the NHS, growing pains are common in children aged three to 12 and are usually harmless, with symptoms often improving on their own.

Despite the name, growing pains are not thought to be caused directly by growing. They often happen later in the day or at night and usually affect both legs, particularly the muscles around the calves, thighs or behind the knees.

How to ease growing pains

Simple measures can often help, including:

  • Gently massaging your child’s legs

  • Using a warm bath or heat pad

  • Encouraging stretching exercises – particularly for the calves, hamstrings and quadricep muscles

  • Offering suitable pain relief if needed.

As Mumsnet user Cityzen74 shares: "My DS (7) is waking up quite a lot in the night with what I assume are growing pains in his legs. They are so bad he is crying in pain. [...] I give him CALPOL® which helps."

Please note it is important to take CALPOL® Infant Suspension as directed in the patient information leaflet.

Speak to your GP or healthcare practitioner if your child has pain in just one leg, pain that affects their ability to walk, swelling, bruising, a rash, a high temperature or if something doesn’t feel right.

About CALPOL®

For generations, mums and dads have reached for CALPOL® products when their children feel poorly. From stuffy noses and sore throats, to aches and pains, fevers and teething, CALPOL® has carefully developed a family of effective medicines and non-medicines to help you take great care of your little one. 

At CALPOL®, we understand that when your little one is feeling unwell, all you want is to see a happy smile on their face again. We know that your love and care are more important than anything else when it comes to making your baby feel better. And we know that cuddles can go a long, long way.

But we also know that – sometimes – everyone needs a little help. For over 60 years, parents have used our medicines when their children are unwell.

When they are unwell, our products can help soothe them. When they’re in pain, our products can bring reassuring relief.

Each one of our medicines is the fruit of years of experience, research and knowledge. Which means you can choose them for the people you value most of all – your children.


*CALPOL® Infant Original Oral Suspension for infants 2 months + (weighing over 4kg & not premature). Contains paracetamol. For pain and fever. Always read the label.

CALPOL® Infant Suspension Sachets for infants 2 months + (weighing over 4kg & not premature). Contains paracetamol. For pain and fever. Always read the label.

CALPOL® Sugar Free Infant Suspension for infants 2 months + (weighing over 4kg & not premature). Contains paracetamol. For pain and fever. Always read the label.

CALPOL® Sugar Free Infant Suspension Sachets for infants 2 months + (weighing over 4kg & not premature). Contains paracetamol. For pain and fever. Always read the label.

CALPOL® Infant Sugar Free Colour Free 120mg/5ml Oral Suspension for infants 2 months + (weighing over 4kg & not premature). Contains paracetamol. For pain and fever. Always read the label.

CALCOUGH® Infant Syrup (for 3+ months). Contains glycerol. For cough. Always read the label.

CALPOL® Saline Nasal Spray (from birth) for congestion relief. Non medicine. Always read the label.


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