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Fever in Kids: Symptoms, Causes & Treatment

By Dr. Gyanam Misra in Neonatology , Paediatrics (Ped)

Jul 08 , 2025 | 4 min read

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Every parent has been there. Your child feels warm and looks flushed, and you reach for the thermometer. A number flashes on the screen, 100.4°F or more, and your mind starts racing. Is it just a common cold or something serious? Should you give medicine now or wait? When is it time to call the doctor?

Fevers in kids are common, especially in toddlers and young children. In most cases, they are a sign that the body is fighting off an infection. But as a parent, it’s important to know when to stay calm and when to take action.

What is Considered a Fever in Kids?

A fever is usually defined as a body temperature higher than 100.4°F (38°C). It is not an illness in itself but rather a symptom of an underlying condition, most often an infection.

Here’s a quick guide on body temperature readings:

  • Normal: 97°F to 99°F (36.1°C to 37.2°C)
  • Mild fever: 99°F to 100.4°F (37.2°C to 38°C)
  • High fever in kids: Above 102°F (38.9°C)
  • Very high fever: Above 104°F (40°C)

Common Causes of Fever in Children

Fevers can be triggered by many different things. Some of the most common causes include:

  • Viral infections: Like flu, cold, or viral fever in kids
  • Bacterial infections: Such as ear infections, strep throat, or urinary tract infections
  • Post-vaccination: Mild fever after routine vaccines is normal
  • Teething: Usually causes slight temperature rise, not true fever
  • Overheating: Due to hot weather or too many clothes

When Should You Worry About a Fever?

Not all fevers require a doctor’s visit. However, you should watch out for the following signs and act accordingly.

Call a paediatrician immediately if:

  • Your infant is younger than 3 months and has a fever over 100.4°F
  • The fever lasts more than 3 days
  • The child is unusually drowsy, irritable, or unresponsive
  • The fever crosses 104°F
  • The child has seizures or difficulty breathing
  • There’s a rash along with a fever
  • Signs of dehydration appear, such as dry mouth, no tears when crying, or no urine output for over 6 hours

Symptoms to Watch Along With Fever

Fever is usually accompanied by other signs that can help you understand the cause:

  • Runny nose or cough: Likely viral
  • Ear pain: Possible ear infection
  • Sore throat: Could be strep throat or viral pharyngitis
  • Vomiting or diarrhoea: Possibly a stomach infection
  • Urine pain or changes: Might be a urinary tract infection

Always observe how your child behaves. If your little one is still active, eating well, and playing, even with a mild fever, it’s usually not something to panic about.

How to Reduce Fever in Kids Naturally?

While medication helps bring down high fever, there are also gentle, natural ways to manage it at home, especially for mild cases.

Try these home care tips:

  • Keep your child hydrated: Give sips of water, coconut water, or ORS
  • Dress them lightly: Too many layers can trap heat
  • Use a lukewarm sponge bath: Avoid cold water as it may cause shivering
  • Let them rest: Sleep helps the body recover faster
  • Offer light, nourishing foods: Khichdi, fruit, soup, and curd can be soothing

These methods can be very effective in managing fever in toddlers and older children when there are no warning signs.

Medical Treatment Options

If your child has a high fever or is uncomfortable, medication may be necessary. The most commonly used medicines include:

  • Paracetamol (acetaminophen): Safe for most children and commonly used
  • Ibuprofen: Suitable for kids above 6 months, works well for reducing both fever and pain

Always use the correct dosage based on your child’s weight and age. Avoid giving aspirin to children, as it can lead to serious complications.

When to See a Doctor?

As a rule of thumb, seek medical attention if:

  • Your child’s fever is persistent for more than 72 hours
  • The child refuses to eat or drink anything
  • You notice new symptoms like rashes, stiff neck, or confusion
  • You feel something is not right with your child’s behaviour

Conclusion

Fevers in children are common, and in most cases, they are the body’s natural response to infection. But knowing when to worry and when to wait can make all the difference.

Keep an eye on your child’s overall health, not just the thermometer reading. Offer comfort, rest, and hydration, and never hesitate to consult a paediatrician if you’re unsure. A timely checkup can offer peace of mind and protect your child’s health.

Frequently Asked Questions

Can I send my child to school with a low-grade fever?

It’s best to keep your child at home if they have a fever, even a mild one. Sending them to school too early can spread infection and delay recovery.

Why does my child’s fever spike at night?

Body temperature naturally rises at night, and many infections tend to show stronger symptoms during the evening. This doesn’t always mean the illness is getting worse, but it’s a common pattern.

Why is maintaining hydration important in fever?

The insensible water loss through skin increases when body temperature is high which can further contribute to rising temperature. A child should be given plenty of oral fluids in the form of soup, juice, ORS, water, etc to maintain hydration.

Can teething cause high fever in babies?

Teething might cause a slight temperature rise, but a high fever in kids is not typical for teething. If your baby has a fever over 100.4°F, there might be another cause to explore.

What foods help during recovery from fever in kids?

Easily digestible, nutrient-rich foods are ideal. Try homemade soups, mashed fruits, curd rice, and moong dal khichdi. Avoid spicy or oily foods that can upset the stomach.