Fever in Children: Causes, Symptoms, Treatment & When to Consult a Doctor

What Is Fever in a Child?

A fever means that a child's body temperature has risen above the normal range. A temperature of 38°C (100.4°F) or higher is generally considered a fever.

Fever commonly occurs when the immune system responds to an infection. The body changes its internal temperature regulation, which can make a child feel cold or develop chills even though their temperature is rising.

Parents sometimes judge fever simply by touching the child's forehead. Touch can give an idea that a child feels warm, but it cannot accurately tell you the temperature.

A digital thermometer is much more useful.

For young children, the temperature can commonly be measured according to the manufacturer's instructions, including in the armpit for many children. If a child has recently had a bath or has been heavily wrapped in blankets, the temperature may temporarily be higher, so it can be useful to wait a few minutes and recheck.

Why Do Children Get Fever?

Fever has many possible causes. Infection is the most common.

1. Viral infections

Viruses are among the most common causes of fever in children.

Examples include:

• Common cold viruses
• Influenza
• Viral sore throat
• Viral gastroenteritis
• Respiratory viruses
• Roseola
• Chickenpox
• Other childhood viral infections

A viral infection may cause fever together with cough, runny nose, sore throat, vomiting, diarrhea, tiredness or body aches.

Most uncomplicated viral infections improve with time and supportive care. However, parents should monitor the child's condition rather than assuming every fever is "just viral."

2. Bacterial infections

Bacteria can also cause fever.

Examples include:

• Ear infections
• Urinary tract infections
• Some throat infections
• Pneumonia
• Certain skin infections
• Some intestinal infections
• Serious bloodstream infections

A bacterial infection may require specific treatment. Antibiotics should not be started simply because a child has a fever.

Antibiotics work against certain bacterial infections, not ordinary viral infections. A doctor may need to examine the child and decide whether testing or antibiotic treatment is appropriate.

Never use leftover antibiotics from an older illness or give a medicine prescribed for another child.

3. Ear infections

Ear infections are common in children.

A child may have:

• Fever
• Ear pain
• Irritability
• Trouble sleeping
• Crying more than usual
• Reduced appetite
• Sometimes fluid coming from the ear

Young children may not be able to tell you that their ear hurts. Instead, they may simply become unusually irritable or repeatedly touch their ear.

A doctor can examine the ear and determine whether an infection is present and what treatment, if any, is appropriate.

4. Throat and tonsil infections

A fever may occur with inflammation or infection of the throat or tonsils.

Possible symptoms include:

• Sore throat
• Difficulty swallowing
• Red throat
• Enlarged tonsils
• Swollen glands
• Bad breath
• Reduced appetite
• Fever

Not every sore throat requires antibiotics. The cause needs to be assessed.

5. Chest infections and pneumonia

Fever accompanied by respiratory symptoms deserves careful attention.

A child may have:

• Cough
• Fast breathing
• Difficulty breathing
• Chest discomfort
• Weakness
• Poor feeding
• Fever
• Reduced activity

Breathing difficulty is a warning sign. A child who is struggling to breathe should receive urgent medical assessment.

6. Urinary tract infections

Urinary tract infections can cause fever, particularly in younger children.

Depending on the child's age, symptoms can include:

• Fever without an obvious source
• Pain or burning while urinating
• Frequent urination
• Strong-smelling urine
• Abdominal or back pain
• Vomiting
• Irritability

In infants and toddlers, fever may sometimes be the main noticeable symptom.

A doctor may recommend a urine test if a urinary infection is suspected.

7. Gastrointestinal infections

Fever can occur with infections affecting the stomach and intestines.

Children may experience:

• Vomiting
• Diarrhea
• Abdominal pain
• Fever
• Reduced appetite

The biggest concern may become dehydration.

Parents should pay attention to urine output, tears, mouth moisture, alertness and the child's ability to drink.

8. Vaccination

Some children develop a mild fever after vaccination.

This can be a normal immune response. However, parents should still monitor the child and seek medical advice if the child appears seriously unwell or develops concerning symptoms.

Symptoms That Can Occur With Fever

Fever does not look exactly the same in every child.

A child may experience:

• Warm or hot skin
• Sweating
• Chills
• Shivering
• Tiredness
• Irritability
• Headache
• Body aches
• Reduced appetite
• Increased thirst
• Sleepiness
• Faster heartbeat
• Faster breathing
• Cough
• Runny nose
• Sore throat
• Vomiting
• Diarrhea

The underlying illness determines which symptoms occur.

A child who has fever but remains alert, drinks fluids and interacts normally can be very different from a child with the same temperature who is difficult to wake, breathing rapidly or refusing all fluids.

That is why the child's overall condition matters—not just the thermometer reading.

What Should Parents Do When a Child Has Fever?

First, stay calm.

Check the temperature with a thermometer and observe the child.

Ask yourself:

• Is my child awake and responsive?
• Is the child drinking?
• Is the child urinating normally?
• Is breathing comfortable?
• Is there persistent vomiting?
• Is there a rash?
• Is there severe pain?
• How long has the fever been present?
• What other symptoms are present?
• How old is the child?

These details help a doctor understand what may be happening.

Keep the Child Hydrated

Fluids are extremely important during fever.

Offer appropriate fluids frequently.

For babies who breastfeed, continue breastfeeding.

Depending on the child's age and condition, fluids may include:

• Breast milk
• Water where appropriate
• Oral rehydration solution when indicated
• Other age-appropriate fluids recommended by a healthcare professional

If a child is vomiting, small frequent amounts may be easier to tolerate.

Watch for dehydration.

Possible signs include:

• Very little urine
• Fewer wet diapers
• Dry mouth
• No tears when crying
• Sunken eyes
• Unusual sleepiness
• Weakness

Dehydration can become serious, particularly in babies and young children.

Does Every Fever Need Medicine?

No.

The goal of fever treatment is generally to make an uncomfortable child feel better rather than simply forcing the thermometer back to a normal number.

If a child has a fever but is comfortable, drinking and behaving reasonably normally, medicine may not always be necessary.

If the child is distressed or uncomfortable, a doctor may recommend an appropriate fever-reducing medicine.

Paracetamol / Acetaminophen

Paracetamol is commonly used to reduce fever and relieve pain in children.

However, parents should not guess the dose.

Different products may have different concentrations, and accidentally giving two products containing the same ingredient can cause an overdose.

Always check the product strength and follow the advice of your child's doctor or the product instructions appropriate to the child's age and weight.

Never assume that the dose given to an older sibling is appropriate for a younger child.

Ibuprofen

Ibuprofen is another medicine sometimes used for fever and pain in children.

However, it is not suitable for every child.

For example, certain young infants, dehydrated children and children with particular medical conditions may require avoidance or medical advice before use.

Do not automatically give ibuprofen just because your child has a fever.

Ask a doctor or pharmacist whether it is appropriate for your child and what dose is suitable.

Do Not Randomly Alternate Medicines

Some parents give paracetamol and ibuprofen alternately because they are worried that the fever keeps returning.

This can create confusion and dosing errors.

If a doctor specifically recommends an alternating schedule, write down:

• Medicine name
• Dose
• Time given

This simple habit can help prevent accidental double dosing.

Never Give Aspirin to Children Unless Specifically Directed

Aspirin should not routinely be given to children for fever.

Parents should never use an adult fever medicine simply because it is available at home.

What About Antibiotics?

A fever does not automatically mean a child needs an antibiotic.

Antibiotics are designed to treat specific bacterial infections. Many childhood fevers are caused by viruses.

Giving antibiotics unnecessarily can expose children to side effects and contributes to antibiotic resistance.

If a doctor suspects a bacterial infection, they may recommend an examination or tests before deciding on treatment.

Avoid These Common Fever Mistakes

Parents sometimes try to reduce fever quickly using methods that can be uncomfortable or unsafe.

Avoid:

• Giving adult medicine doses
• Guessing a dose without checking weight and medicine concentration
• Giving leftover antibiotics
• Giving someone else's prescription
• Giving aspirin without medical direction
• Giving multiple cold/flu products containing the same fever medicine
• Alternating medicines without professional instructions
• Forcing a child to eat
• Over-wrapping a child in blankets
• Using extremely cold water to try to rapidly cool the child

The aim should be safe care and comfort, not simply making the thermometer display a normal number.

Fever and Febrile Fits (Seizures)

One of the scariest complications parents may encounter is a febrile seizure, sometimes called a fever fit or febrile convulsion.

A febrile seizure is a seizure associated with fever in a young child who does not have another explanation such as a previous afebrile seizure or certain central nervous system conditions.

Febrile seizures commonly occur between approximately 6 months and 5 years of age.

They can happen with common childhood infections such as colds, influenza, ear infections and other illnesses that produce fever.

What Does a Febrile Fit Look Like?

During a febrile seizure, a child may:

• Suddenly become stiff
• Shake or jerk
• Roll their eyes
• Become unresponsive
• Stop responding temporarily
• Have changes in breathing
• Become sleepy afterward
• Appear confused after the seizure

It can be extremely frightening for parents.

Most simple febrile seizures are short and children recover quickly.

Febrile Seizure vs Afebrile Seizure

Febrile seizure: A febrile seizure occurs in association with fever, usually in the typical childhood age range.

Afebrile seizure: An afebrile seizure occurs without fever.

An unexplained seizure without fever should not simply be assumed to be a febrile seizure.

A child with an afebrile seizure needs medical evaluation because seizures without fever can have many possible causes.

Never diagnose a seizure yourself based only on what it looked like.

A doctor needs to assess the child's history and circumstances.

Simple vs Complex Febrile Seizures

Doctors may further classify febrile seizures.

A simple febrile seizure is generally:

• Generalized rather than focused on one part of the body
• Less than 15 minutes
• Occurs only once in 24 hours

A seizure lasting longer than 15 minutes, occurring more than once in 24 hours, or having focal features may be classified as a complex febrile seizure.

What Should You Do During a Febrile Fit?

If a child has a seizure:

1. Protect the child from injury – Move dangerous objects away. Place the child somewhere safe.
2. Turn the child's head to the side – This can help saliva or vomit drain from the mouth.
3. Do NOT put anything in the child's mouth – Do not put a spoon, your fingers, water, medicine, food, or any object into the child's mouth. A child cannot "swallow their tongue" during a seizure.
4. Do not restrain the movements – Do not forcefully hold the child's arms or legs down.
5. Time the seizure – Use a clock or phone timer. This is extremely useful information for doctors.
6. Get urgent medical help – A seizure lasting more than 5 minutes is a medical emergency. A first seizure should also receive urgent medical assessment.

Can Fever Medicine Prevent Febrile Seizures?

This is a common misconception.

Parents may think that if they lower the temperature quickly, they can prevent a febrile seizure.

Unfortunately, fever-reducing medicines such as acetaminophen and ibuprofen do not reliably prevent febrile seizures. Their main purpose is to improve comfort when a child is uncomfortable.

Therefore, do not repeatedly give medicine simply because you are afraid that a seizure might happen.

Follow a doctor's medication instructions instead.

When Is Fever an Emergency?

Seek urgent medical attention if a child with fever has concerning symptoms such as:

• Difficulty breathing
• Blue, grey or unusually pale lips or skin
• Severe drowsiness
• Difficulty waking
• Confusion
• A stiff neck
• A seizure
• A seizure lasting more than 5 minutes
• A concerning rash that does not fade when pressed
• Severe dehydration
• Persistent inability to drink
• Very poor responsiveness
• Severe or worsening pain

These signs can indicate a serious illness and should not be managed by simply giving fever medicine at home.

Fever in Very Young Babies

Age is extremely important.

A fever in a young infant deserves special attention.

For example, urgent medical assessment is recommended for babies under 3 months with a temperature of 38°C or higher.

Do not rely on online articles to decide whether a very young baby is safe to manage at home.

If a young baby has fever, contact a qualified healthcare professional promptly.

When Should Parents Consult a Doctor?

You should consider medical consultation when:

• You are unsure of the cause of fever
• The child is very young
• Fever continues or keeps returning
• The child is becoming increasingly unwell
• The child is not drinking
• There are signs of dehydration
• The child has breathing problems
• There is persistent vomiting
• There is severe pain
• There is an unusual rash
• The child is unusually sleepy
• The child has a seizure
• The fever is accompanied by concerning symptoms
• You are unsure which medicine is safe
• You do not know the correct dose
• The child has a chronic medical condition
• The child takes other medicines

Why Consult a Pediatrician Through ChildCare.pk?

When your child develops a fever, the biggest challenge is often not finding a medicine—it is understanding why the child has a fever and what should happen next.

This is especially important because the same temperature can occur with very different illnesses.

Through ChildCare.pk, parents can seek professional guidance regarding their child's symptoms, including questions such as:

• What could be causing the fever?
• Does my child need to be examined?
• Is this fever appropriate for home monitoring?
• What warning signs should I watch for?
• Does my child need testing?
• Which medicine, if any, is appropriate?
• What dose is appropriate for my child's weight?
• How often can it be given?
• Should I avoid a particular medicine?
• Could the symptoms indicate dehydration?
• Could this be a febrile seizure?
• Does my child need urgent in-person care?

The doctor can consider the child's age, weight, symptoms, medical history and current medicines rather than giving a generic recommendation.

That individual assessment is especially important because children do not all need the same medicine or the same dose.

Fever Is a Symptom—Find the Cause

A fever reducer may lower the child's temperature, but it does not necessarily treat the illness causing the fever.

Therefore, repeatedly treating the number on the thermometer without considering the underlying illness is not always the right approach.

Do Not Panic About the Number Alone

Parents naturally become frightened when they see a temperature of 39°C or 40°C.

But the temperature number should be considered together with the child's overall condition.

Ask:

• Is the child alert?
• Are they drinking?
• Are they breathing comfortably?
• Are they urinating?
• Can they be awakened normally?
• Are they interacting with you?
• Do they have severe pain or other warning signs?

A Simple Fever Safety Rule for Parents

Remember these five points:

1. Measure – Use a reliable thermometer rather than relying only on touch.
2. Observe – Watch your child's behavior, breathing, hydration and alertness.
3. Hydrate – Offer appropriate fluids and continue breastfeeding when applicable.
4. Don't guess medicines – Never give adult doses. Never guess a pediatric dose.
5. Consult – If you are worried, uncertain, or the child has concerning symptoms, speak with a qualified doctor.

The Bottom Line

Fever is common in children and is usually a sign that the body is responding to an illness. Most childhood fevers are not dangerous by themselves, but parents should pay attention to the child's age, symptoms, hydration, breathing, alertness and general condition.

Do not automatically assume that every fever needs antibiotics.

Do not automatically give fever medicine simply to make the thermometer reading normal.

And most importantly:

Never give an adult dose to a child.

Children require child-appropriate medicines and doses, and many doses depend on the child's weight.

Paracetamol and ibuprofen may be appropriate for some children, but they are not suitable for every child, and medication errors can be dangerous.

Febrile seizures can be terrifying but are usually brief and have a good prognosis. However, a first seizure, a seizure lasting more than 5 minutes, breathing difficulty or other concerning features require urgent medical attention.

When you are unsure what is causing your child's fever, whether medicine is appropriate, or what dose should be used, don't guess. Talk to a qualified pediatrician.

Your child's fever deserves more than a thermometer reading.