Common Preschool Illnesses in India: Causes, Symptoms and Prevention

A Teacher’s Guide through the "Classroom Plague Season"

Any morning would be a whirlwind of children everywhere, and controlled chaos in a preschool classroom is a normal sight. But if, on any morning, I see a little one who is usually a tornado of energy resting their head on the table, cheeks a little flushed. And an hour later, I hear the first sniffle at the corner of the block. I know that by Friday, half my attendance sheet will be marked 'absent'.

I often see parents go through the same emotional ups and downs every year as their children experience these common preschool illnesses. When parents pack their little ones' backpacks, label each water bottle and wipe away their tears at the gate (and hide a few of their own), only to have their child come back two weeks later with a raging fever and a crusty nose. I know the instant guilt that parents feel. “Did I start school too young?” or “Is the classroom not hygienic enough?” are questions that plague their mind.

Let me tell you a comforting truth about these common preschool illnesses: you are not doing anything wrong, and neither is the school! What you’re going through is a very normal biological process. In the preschool classroom, we lovingly (and a bit exhaustedly) refer to this time as the “preschool plague season.” Classrooms often feel like a giant petri dish of all common childhood illnesses, and in today's blog, we will discuss their causes and prevention.

Why Does Preschool Feel Like a Petri Dish of Common Preschool Illnesses?

Before a child comes into my classroom, their immune system was in a protective bubble at home. Their immune systems had encountered the germs that live in their homes and neighbourhoods. Their bodies have got used to it and are resistant to the microbial germs around. Parents at home always make extra efforts to keep their child’s environment sanitised and germ-free. Parents wipe the counters, wash the toys and take care of the sanitisation of the clothes. But the moment they start preschool, their social circle explodes with 20 or 30 kids. And each of these children carries with them a microbial universe from their own environment. 

Adding to the mix is the way preschoolers behave. They share water bottles without asking and press their faces (sometimes snotty ones) against the same window. Hold their hands (which might have gone everywhere but under the tap) together continuously and put toys in their mouths, which everyone else might have tasted that morning! A single infected child can bring down the entire class within days. 

One kid bringing in a bug can spread it to half the class by the afternoon bell. Medical studies show that children in group childcare settings get between six and twelve minor infections a year. It feels relentless, especially in that first term, but I promise you, it is just biology doing its necessary groundwork. [1], [2]

List of Most Common Childhood Illnesses seen in Preschoolers

If parents ask me what condition I most often see in preschoolers, I tell them that it usually involves a few common respiratory and tummy bugs. This is what I look for every day:

1. Upper respiratory tract infections (common cold)

The common cold is the king of the classroom, no question, going through the air and through our toys. Every time a child coughs and picks up a plastic dinosaur, and then the next child picks up the dinosaur and immediately rubs their eyes, voilà, the transformation is complete!

• What I see in class: A sudden loss of energy, constant sneezing, clear snot turning thick, and general crankiness at storytime.
  
  
• What helps: Resting and drinking fluids. Don’t send your kid to school loaded up with heavy over-the-counter cough syrups, most of which aren’t recommended for kids under four anyway. The best are saline drops and warm soups.
  
  
• When to call the doctor: When that cold lasts longer than 10 days or if your child has a persistent high fever or complains of ear pain.
  
  

2. Ear Infection (Otitis Media)

In toddlers, the tubes that connect the ears are short and horizontal, so it’s super easy for fluid from a common cold to get stuck behind the eardrum.

• What I see in class: A child who screams out of nowhere when lying down for naptime or someone who is constantly pulling on their ear in frustration might be struggling with an ear infection.
  
  
• What helps: Normally, mild ear infections resolve on their own. A paediatrician will advise whether antibiotics are needed, depending on the child’s age and the severity of the infection.
  
  
• Your paediatrician is going to have to look inside with an otoscope to see if it’s a viral or bacterial infection that needs antibiotics. Otitis media is one of the most common childhood illnesses of this age group. [3]
  
  

3. Stomach Flu (Gastroenteritis)

Preschools are breeding grounds for stomach bugs. Modern vaccines have more or less tackled serious threats such as rotavirus, but ordinary stomach bugs are still circulating, and frankly, these are not too worrying if you take care of them on time. [4]

• What I see in class: A child's face suddenly goes pale, he refuses his favourite snack, and then I see he suddenly starts vomiting or is affected by diarrhoea.
  
  
• What really helps: Stop solid foods and take ORS solutions like Electral or Pedialyte in small quantities frequently.
  
  
• When to be concerned: When a child looks dehydrated (no tears when crying, a dry mouth, sunken eyes, or very little urination), we immediately contact parents and advise a doctor’s visit.
  
  

4. Hand, Foot and Mouth Disease (HFMD)

This bug loves to see a sharp spike in India when the monsoon comes in.

• What I see in class: A child says their mouth hurts when they drink water. They have little red sores inside their mouths and a definite flat, red rash on the palms of their hands and the soles of their feet.
  
  
• What actually works: This one just needs to run its course (usually 7-10 days). Give cold milk, curd or smooth purees to relieve the pain in the mouth.
  
  
• Key fact: HFMD is not the same as foot-and-mouth disease in animals. They are caused by entirely different viruses. [5]
  
  

5. Strep Throat

It’s not just a scratchy throat from a cold; strep throat can be painful, as it is a bacterial infection that makes swallowing feel agonising.

• What I see in class: A high fever that develops quickly and a child who begins crying as he or she tries to swallow his or her lunch. This one doesn't usually give you a runny nose or a cough like a cold does.
  
  
• What really helps is a definitive trip to the doctor and a course of antibiotics. [6]
  
  

6. Conjunctivitis (Pink Eye)

Pink eye travels through preschool classrooms at the speed of lightning. Bacterial conjunctivitis is very contagious and spreads the same way as colds. Young children often rub their eyes before washing them. The act takes the infection straight to the eyes. 

• What I see in class: One or both eyes are bloodshot, watery, and puffy. Often, a yellow discharge would mat the lashes together.
  
  
• What helps: If it’s bacterial, you’ll need an antibiotic eye drop. Since it is very contagious, I will always ask parents to keep their child home until the eyes are clear.
  
  

The Silver Lining: Why common childhood illness matters

Here’s what I tell every teary, exhausted parent who comes to my office: this sickness is an investment in their future health.

Our immune systems need to learn to protect our bodies. They learn by fighting. Each time your child catches one of these common Classroom bugs, take a snapshot of the virus and build up a library of antibodies.

That’s why kids who get tonnes of colds in preschool often don’t miss a day of school when they start primary grades. Some of the microbes we are exposed to in our everyday lives may prime our immune system to respond correctly, and researchers believe this exposure may actually lower our risk of allergies and asthma later in life. They are only just warming up. [7]

Common Childhood Illnesses: Causes, Prevention and How We Fight Back Together

We can decrease the spread of these germs amongst the preschoolers if the home and the school work together.”

What I will do in the Classroom for a healthier environment

• The Handwashing Ritual: 1. We don’t just wash our hands; we make an event. The kids wash their hands on arrival, before snacks, after the playground and after the toilet. We sing a 20-second song so they’re actually washing with soap.
  
  
• The Nightly Sanitisation. The child-safe disinfectants are used after the kids leave. We deep-clean the Montessori materials, the shared toys, and the bathroom doorknobs and taps.
  
  
• Ventilation: Germs thrive in stagnant air. I always keep the classroom windows open as much as the Indian weather permits for fresh air.
  
  
• The “Strict Isolation” Rule: If a child has a fever, vomits, or has a weeping rash during the day, I will call you immediately. Not to interrupt your workday, but to look out for the other 20 children in the room.

Moreover, as a teacher, I find that many activities in our curriculum also include lessons and activities that teach children about cleanliness and hygiene, which is really helpful for teaching them. Many activities can be done in class to make these health and hygiene practices a lifelong habit for the child.

Things You Can Do at Home 

• Hold off on pushing kids into classrooms too soon: I know you have deadlines and important meetings and household responsibilities. But it's not the answer to send a child to school on a dose of paracetamol. The medicine will wear off by 11:00 AM, and you will have a miserable child who has now infected the whole class. Keep them home until they are fever-free for 24 hours without medication.
  
  
• Vaccinations Mandatory: Stay Current: Make sure your child’s schedule of paediatric vaccinations is completely up to date. And it is our best protection against the really dangerous childhood diseases.
  
  
• Rest well: A weary child’s immune system is not as strong. Preschoolers need 10 to 13 hours of deep sleep to recharge their immune reserves.
  
  
• Diet: A preschool proper diet is crucial in making the child heal faster. We already have a blog post on this topic, which you can read to get a better idea of the food to serve growing preschoolers.
  
  

When to See a Doctor

Usually, all your child needs is love, rest and fluids. But some cases demand seeing the doctor.

• A fever that won’t go away after three days.
• Any breathing that sounds laboured, is accompanied by heaving, is rapid, or produces a whistling sound.
• Deep Lethargy when your child won't look at you, won't drink anything, and is too weak to play, even when the fever is gone.
• Signs of dehydration include crying without tears or going 6 hours without a wet nappy.
  
  

A Final Thought 

The first year of preschool is hard on a family’s immune system. That little rucksack will come home with stunning artwork, beautiful memories and a fair share of germs.

But keep a close eye on your child as the months go by. You will see the colds get shorter. Fevers are less frequent. The recovery is quicker. We’re raising good, strong people, one little sniffle at a time. 

What we can do is weave health, hygiene, and cleanliness into our daily lessons, curriculum activities, and games, helping the child learn these as lifelong habits. As teachers or parents, we can only provide the foundational lessons that will guide them through life.

FAQ

1. What Are the Common Preschool Illnesses and Their Symptoms?

Common preschool illnesses and their symptoms that we see in our classrooms include the following:

The Big 6: common cold (sneezing, stuffy nose); ear infections (ear pain, poor sleep); stomach flu (vomiting, diarrhoea); hand, foot and mouth disease (mouth sores, rash on palms and feet); strep throat (severe pain when swallowing); and pink eye (redness, discharge).

Symptoms: Most begin with fever, runny nose, and irritability.

2. What are the most common infections preschool kids get?

The most common infections that we see in preschoolers are viral and bacterial infections. These are more common than anything, especially in the first year. Some of these infections include:

• Viral Infections: All colds, the flu, stomach bugs and chicken pox. These just need time and rest to develop.
• Bacterial Infections: These include strep throat and impetigo (crusty skin rash). These need antibiotics from a doctor.
  
  

3. How to Recognise Chickenpox in Toddlers Early

Measles and chickenpox are definite things a child will encounter at some stage in their school life. And as teachers, we know that the moment we see one, other cases will pop up. They are safe thanks to vaccinations, so the infection is not too severe. Early symptoms of chickenpox in a child include:

• Early Symptoms: Mild Fever, Tiredness, Decreased Appetite for 1-2 Days
• The Rash: Small red spots show up on the chest, back or face and develop into very itchy, fluid-filled blisters.
• The Giveaway: New spots keep coming, so you'll see fresh red bumps, blisters, and crusty scabs all at the same time.
  
  

4. What OTC medicines are safe for kids in India?

In cases of emergency, parents can get hold of some over-the-counter medicines. They are to be used only in schools with a good understanding of the child’s medical history and allergies. Though it is always better to give the parents a call so that they can take the child to a doctor. However, some of the safe OTC medicines are

• For fever and pain, paracetamol (Calpol, Crocin) is the best option. Good for babies over 6 months, Ibuprofen
• Dehydration: Oral rehydration salts (ORS) such as Electral or Pedialyte are important for stomach bugs.
• Nasal Congestion: Saline nasal drops are safe for all age groups.

Adults need to remember that they should not give cough syrups, antihistamines, or antibiotics to children without the advice of a doctor. Most cough and cold remedies are unsafe for children under 4.

5. Which home remedies for a cold or cough actually work?

Children often get into a cycle of simple coughs and colds, and some remedies work well. We do not want their young bodies to be pumped up with heavy medicines every time. Most of these home remedies work fine:

For colds, rest, drink plenty of warm fluids (such as soups and water), use saline nasal drops, and consider a cool mist humidifier. You can also try raising the head of their mattress a little.

For coughs: give half a teaspoon of honey at bedtime (for children over 1 year of age only).

6. What are the best home remedies for stomach bugs and rashes?

There are some home remedies for stomach bugs and rashes, as we don’t want to overmedicate young children. Sometimes, stomach bugs are mild enough to be soothed and cured with home remedies.

• Stomach bugs: Have small sips of ORS frequently. Do not push solids until they are ready.
• Itching Rashes: Apply calamine lotion to help reduce itching.
  
  

7. How do preschools prevent germs from spreading?

Some easy ways to stop germs from spreading in a classroom or home are the following:

• Hand washing: Children will wash their hands for 20 seconds when they arrive, before meals and after bathroom or outdoor play.
• School Hygiene: Schools need daily disinfection of toys and doorknobs, along with good ventilation in classrooms. Little things like teaching kids to sneeze into their elbows and learning how to use their bottles and spoons help prevent germs.
• The Sick Rule: Children with Fever, Active Vomiting, or a Weeping Rash Must Stay Home
  
  

8. What is the immunization schedule for children under 5 years of age in India?

The Indian government’s recommended vaccine schedule for children under 5 is as follows: