Fever in Children
“My child has a fever. Does it mean antibiotics are needed?”
Fever ≠ Always Antibiotics
A child with fever does not always need antibiotics. What matters most is the underlying cause of the fever and how well the child is otherwise doing.
A fever is a rise in body temperature, usually 38°C or higher, and is most often caused by the body’s immune system responding to an infection. Fever is very common in children and, in many cases, is related to a viral illness.
The temperature reading is useful, but your child’s overall condition is equally important — how they breathe, drink, respond, and behave.
Common Causes
Viral Infections
Most common- Common cold
- Influenza (flu)
- Viral tonsillopharyngitis (throat infection)
- Hand, foot and mouth disease
- Viral gastroenteritis
Bacterial Infections
- Ear infection
- Throat infection (streptococcal)
- Pneumonia
- Urinary tract infection
- Other less common bacterial illnesses
Other Causes
- A short-lived fever after some vaccinations
- Inflammatory conditions
- Other medical conditions that may require assessment
Because viral infections are the most common cause of fever in children, antibiotics are often not needed. Antibiotics are considered only when the doctor suspects a bacterial infection based on the history, examination, and sometimes investigations.
Fever Above 38°C — Is Teething the Cause?
Teething may cause mild discomfort and a slight temperature rise, but it should not cause a significant fever (38°C or higher).
If your child has a true fever, especially with symptoms such as cough, runny nose, vomiting, diarrhoea, poor feeding, unusual sleepiness, or irritability, another cause should be considered.
What Parents Can Observe
How the temperature was measured, the highest reading and how long the fever has lasted.
Whether your child is alert, responsive and able to settle between temperature spikes.
Fluid intake, feeding, urine output and signs of dehydration.
Cough, breathing difficulty, rash, vomiting, diarrhoea, pain or unusual drowsiness.
Supportive Care at Home
- Offer frequent fluids and continue breast or formula feeding for babies.
- Dress your child comfortably and allow rest; avoid cold baths or excessive wrapping.
- Use fever medicine only when appropriate for your child’s age and weight and according to professional or product guidance. Avoid giving aspirin to a child.
- Check your child regularly, including during the night if they remain unwell.
When to Arrange a Paediatric Appointment
- The fever persists for more than 3 days, repeatedly returns or your child is not improving as expected.
- Your child has persistent pain, poor feeding, reduced urine, repeated vomiting or a new rash.
- You are concerned about your child’s behaviour, energy level or ability to recover between fever episodes.
- Your child has a long-term medical condition or reduced immunity.
Seek Urgent Medical Care If
- A baby younger than 3 months has a temperature of 38°C or higher.
- Your child is difficult to wake, unusually floppy, confused, having a seizure or not responding normally.
- There is severe breathing difficulty, blue or grey colouring, a stiff neck, or a rash that does not fade when pressed.
- There are clear signs of dehydration, such as very little urine, a very dry mouth, no tears or marked lethargy.
Frequently Asked Questions About Fever in Children
Does Every Child With a Fever Need Antibiotics?
No. Antibiotics treat certain bacterial infections and do not treat viral infections. Many childhood fevers are caused by viral illnesses, so antibiotics may not be necessary.
Is 38°C a Fever in a Child?
Yes. A temperature of 38°C or higher is generally considered a fever in children. However, the child's age, symptoms and overall condition are also important.
Can Teething Cause a 38°C Fever?
Teething may cause mild discomfort and a slight rise in temperature, but a temperature of 38°C or higher should not automatically be blamed on teething. An infection or another cause should be considered.
How Long Does a Fever Last in Children?
The duration depends on the underlying cause. Many viral illnesses improve over several days, but persistent, recurrent or worsening fever should be assessed by a healthcare professional.
When Should I Take My Child to a Paediatrician for Fever?
Arrange a medical assessment if your child is not improving, is drinking poorly, has reduced urine output, develops concerning symptoms, becomes unusually sleepy or irritable, or if you are worried about their condition.
When Is a Child's Fever an Emergency?
Seek urgent medical care if your child has severe difficulty breathing, a seizure, is difficult to wake or respond to, has significant dehydration, develops blue or grey colouring, or has other serious warning signs.
Can I Give Fever Medicine to My Child?
Fever medicine may be appropriate depending on your child's age, weight and symptoms. Follow the product instructions or advice from your healthcare professional. Do not give aspirin to children unless specifically advised by a healthcare professional.
Key Takeaways
- Fever does not automatically mean antibiotics are needed.
- Viral infections are a common cause of fever in children.
- Antibiotics treat bacterial infections, not viral infections.
- A temperature of 38°C or higher is generally considered a fever.
- Teething should not automatically be blamed for a temperature of 38°C or higher.
- Monitor your child's behaviour, breathing, fluid intake and urine output.
- Babies younger than 3 months with a temperature of 38°C or higher require prompt medical assessment.
- A fever lasting more than 3 days should be medically assessed.
Paediatric Fever Assessment in Johor Bahru
Southern Child Specialist Clinic in Johor Bahru provides paediatric consultations for children with fever and associated symptoms.
During the consultation, the paediatric team may assess:
- The child's age and temperature
- How long the fever has been present
- Associated symptoms
- Breathing and respiratory symptoms
- Hydration and feeding
- Activity level and general condition
- Possible source or cause of the fever
Depending on the clinical findings, the doctor can advise whether your child needs supportive care, further investigation, treatment or referral.
Need a Paediatric Assessment?
Contact Southern Child Specialist Clinic to arrange a paediatric consultation.
Book a Paediatric Appointment If your child appears seriously unwell or has difficulty breathing, is unusually difficult to wake, has blue or grey lips, shows signs of severe dehydration, or has another urgent warning sign, seek emergency medical care without delay.
