Understanding Fever in Children: What Parents Need to Know

Fever is one of the most common reasons parents call or visit the doctor. It can be scary to see your child flushed, warm, or uncomfortable—but fever is usually a sign that the body is doing its job to fight off an infection.

What a Fever Alone May Mean

In most cases, a fever simply means the immune system is working hard against a virus or bacteria. Common colds, the flu, ear infections, and other minor illnesses can all cause fever.

  • A “true” fever is typically defined as 100.4°F (38°C) or higher.

  • Fever by itself doesn’t always mean something serious.

  • A healthy child who is alert, playful at times, and drinking fluids—even with a fever—may not need immediate medical attention.

When to see a doctor

While most fevers are not dangerous, there are times when you should call your child’s pediatrician or book an urgent care visit right away:

  • Looks very unwell—extremely drowsy, difficult to wake, or unusually irritable/fussy

  • Has been exposed to excessive heat, such as being in a hot car

  • Has concerning symptoms, including stiff neck, severe headache, intense sore throat, severe ear pain, unexplained rash, or repeated vomiting/diarrhea

  • Shows signs of dehydration, like a dry mouth, sunken soft spot, very few wet diapers, or not able to drink fluids

  • Has a weakened immune system (e.g., sickle cell disease, cancer, or taking immune-suppressing medicines like steroids)

  • Experiences a seizure

  • Is under 3 months old (12 weeks) with a fever of 100.4°F (38°C) or higher

  • Has a fever over 104°F (40°C) that recurs, at any age

  • Your child still seems unwell even after the fever comes down.

  • Your child’s condition is worsening instead of improving.

  • In children under 2 years old: the fever lasts longer than 24 hours.

  • In children age 2 or older: the fever lasts more than 3 days (72 hours).

If you are ever unsure, trust your instincts—parents often know when something isn’t right. We are always happy to see and examine your child when you are worried!

How to Help Your Child Feel Better

  • Offer fluids often—water, breast milk, or oral rehydration solutions keep kids hydrated.

  • Light clothing and a comfortable room temperature can help.

  • Rest is important, but it’s okay if your child wants to quietly play or watch a show.

  • Acetaminophen or ibuprofen can help with comfort. Always use the right dose for your child’s age and weight, and check with your pediatrician if unsure.

💡 Remember: the goal is not to “cure” the fever but to help your child feel more comfortable while the body heals.

Same-Day Pediatric Urgent Care at WanderCARE

Sometimes, you just need a pediatrician to check your child today. At WanderCARE Pediatrics, we provide:

  • Same-day urgent care visits (house call, telemedicine, or office visits in Epping, NH)

  • Specialty pediatric urgent care—the only one of its kind in New Hampshire

  • Urgent Care for newborns through young adults, whether or not you are a member of our practice

📞 Call or text us today at (603) 506-4919 to schedule a same-day appointment.

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