Why Is My Child Always Sick After Starting Daycare?

If you’ve recently started child care and feel like your child has been sick non-stop, you’re not imagining it … and you’re definitely not alone. One of the most common questions, I’m asked by parents, about their child’s health is: “Why is my child always sick after starting daycare?” Drawing on what I explain at the start of my NEW Family Illness Course, let me reassure you: childhood sickness may be inevitable, but it is also temporary. While we can minimise illness, we can’t completely prevent a child from getting sick, especially in the first year of daycare. Let’s walk through what’s normal, what to expect, and how to cope (practically and emotionally) when you’re caring for a sick child more frequently than you ever expected.

Starting daycare is a huge immune-system milestone

When young children start daycare, their immune system is suddenly exposed to a whole new world of germs. In a daycare setting, viruses and bacteria circulate easily between other children of the same age. They play on the ground, touch everything and put every object and their hands into their mouth … ALL. THE. TIME. This is developmentally normal but creates an environment whereby it’s almost impossible to stop the spread of illness. Your child’s immune system is still learning how to respond, and this learning phase can look like frequent respiratory infections, coughs, sore throat symptoms, and runny noses.

Is constant illness normal in the first year of daycare?

Yes; while it can feel overwhelming, it’s completely normal. In fact, healthy young kids in childcare commonly catch around one viral infection per month during their first year. Symptoms often overlap, which makes it feel like your child is never fully well. A typical pattern looks like this:

• 7–10 days of cold or mild illness symptoms
• A lingering cough that can last up to three weeks
• Just as that settles … the next virus arrives

It’s no wonder parents feel stuck on a sickness merry-go-round; constantly juggling work, home sick days, and caring for other kids.

Why kids get sick so often in group care

Children in child care environments:

• Share toys
• Put everything in their mouths
• Have close physical contact with other children
• Are still learning hygiene skills
• Crawl and play on the ground
• Are exposed to new daycare diseases circulating among other kids

This is why children in daycare get sick more often than those cared for at home, especially in the early months.

What to expect: frequency and duration of illness

During the first year of daycare, many young children experience:

• Frequent runny noses and coughs
• Back-to-back viral illnesses
• Mild symptoms that linger but don’t necessarily mean they’re “still sick”

This doesn’t mean your child has a weak immune system. It means their immune system is learning; exactly as it should.

Does it get better over time?

Yes… and this is the good news! As children grow:

• They stop putting everything in their mouths
• Their hygiene improves
• Their immune memory strengthens

By around 5 - 6 years of age, infection frequency drops dramatically, regardless of whether children attended daycare or not. The long-term outcome for kids healthy enough to attend school is the same.

Common illnesses your child might catch at daycare

This is the worst game of bingo you’ll ever play.

Runny noses, colds, and coughs

Upper respiratory illnesses caused by the:

• common cold (which can be caused by several different viruses)

• COVID and
• other respiratory infections, like influenza.

They’re usually viral, mild, and self-limiting; but frustratingly frequent.

Hand, foot and mouth disease

Hand, foot and mouth disease (HFM) is very common in childcare settings. It spreads easily through close contact and shared surfaces, particularly in toddlers and young children. It’s aptly named for the sores on the hands, feet, and mouth.

Tummy bugs, stomach flu, and gastro

Vomiting and diarrhoea viruses (sometimes called gastroenteritis, or stomach flu) spreads quickly in group care. Children usually need to stay home sick for 24–48 hours after symptoms stop.

Ear infections and conjunctivitis

These often follow viral colds and are common reasons parents visit their child’s doctor, particularly for babies and toddlers. Some cases may involve bacterial infections, which require medical assessment.

How to support your child’s immune system

One of the most common questions I’m asked is: “What can I do to boost my child’s immune system?” Closely followed by: “Should I be giving supplements?” The reassuring answer is that supporting immune health comes back to basics. There’s no magic fix, but there are everyday habits that truly matter for keeping kids healthy.

Sleep, nutrition, and hydration

These three pillars are far more important than anything you’ll find in a supplement bottle.

Sleep

Is your child getting enough sleep?

Sleep is essential for immune function, growth, and recovery from illness.

• Infants: 12–16 hours in 24 hours
• Toddlers: 11–14 hours
• Preschoolers: 10–13 hours

Poor sleep makes children more vulnerable to infections and slows recovery.

Nutrition

A healthy diet supports immune health better than any single superfood. Aim for:

• Plenty of vegetables and fruit
• Whole, unprocessed foods
• Healthy fats
• Less sugar and ultra-processed food

Hydration

Water is your child’s best drink.

• Keep drink bottles clean
• Minimise juice and sugary drinks
• Avoid caffeinated drinks entirely
• Oral rehydration solutions can help during illness

Hygiene at home and daycare

Hand hygiene is one of the most effective ways to reduce illness spread in a daycare setting. Encourage hand washing:

• After using the toilet
• Before eating
• After wiping noses or fingers in mouths

Keep routines gentle and consistent rather than stressful. Hygiene should become part of daily family rhythm; not a battleground between you and your child.

Activity, stress, and emotional wellbeing

Physical activity supports immune health. Aim for at least one hour of active play each day; playgrounds, bike riding, sport, or outdoor play. Limit screen time according to age guidelines, and remember that stress matters too. Ongoing stress can make children more prone to illness. Make space for joy and connection for both you and your child. If you’re worried about your child’s emotional wellbeing, speak with your child’s doctor.

Vaccinations matter

Vaccinations are one of the most effective ways to protect children from serious illness. Staying up to date protects your child and other children in the childcare community. In Australia, most childcare settings require vaccines to be current. The flu vaccine is free for all children aged 6 months to 5 years.

Supplements, probiotics, and breastfeeding

For most healthy children, supplements aren’t routinely needed. If your family is focusing on sleep, nutrition, hydration, activity, stress management, vaccinations, and hygiene, you’re already doing what matters most. Breastfeeding continues to offer immune support, it’s amazing how it changes. That said, even breastfed children will still get sick in childcare; this is normal. And while breastfeeding is best if you can’t breastfeed for whatever reason it’s not the end of the world and in the overall scheme of things the illness count won’t be drastically different.

When to keep your child home from daycare

Most centres follow similar exclusion rules:

• Fever: stay home
• Vomiting or diarrhoea: stay home
• Highly contagious illnesses: exclusion applies

A mild runny nose with no fever and a happy child is often okay. A runny nose plus lethargy, fever, or poor feeding usually means staying home. Seek medical advice if your child:

• Has difficulty breathing
• Is very lethargic
• Has ongoing fevers
• Isn’t drinking or weeing normally
• Or if you’re worried; trust your instincts

  This traffic light system is a good way to think about it:

Coping with the stress of constant sickness as parents

The first year of daycare is emotionally and logistically hard. Balancing work, sick leave, and caring for other kids can feel relentless. Frequent illness does not mean daycare isn’t working. It usually means your child is in the normal adjustment phase. If your child is growing well, recovering between illnesses, and mostly experiencing mild illness, this phase will pass.

Managing as a couple:

If you are both working; as a parental partnership it’s really important to work out between the two of you how you will manage the inevitable carers leave that will pop up. Have strategies in place to share the load or have other carers or grandparents that can step in as needed. There’s no silver bullet to navigating this - but early communication before you’re in the thick of it will help minimise any resentment or conflict. It’s a really challenging phase of parenting to manage.

Managing workplaces:

Make sure both parents are talking to workplaces, teams and managers about the potential impact on work. Based on the laws of averages it’s likely there will be 1-2 days a month that one parent will need to take carers leave. Sick children are normally docile so if you have the flexibility to work from home this can be less demanding then when they are home well and full of beans. This is all a balancing act and I’m yet to find a family unit that says they’ve got it right but open and honest communication and forward planning are definitely the keys to success.

A gentle reminder from Dr Golly

You can’t prevent every illness; especially early in daycare; but by focusing on sleep, nutrition, hygiene, activity, emotional wellbeing, and vaccinations, you’re giving your child’s immune system exactly what it needs to mature. And just as importantly: you’re doing enough.

Medical systems, instincts, and disclaimer

Medical professionals exist to support families. If your child needs care, seek it. Trust your instincts; parents often know when something isn’t right. Medical Disclaimer This article is for general educational purposes only and does not replace personalised medical advice. Every child is different. If symptoms are severe, persistent, or worrying, consult your GP, paediatrician, or another qualified healthcare professional. In an emergency, contact local emergency services immediately.