When Should You Worry About a Child’s Fever?

A fever in a child is concerning and may need medical attention if your child is under 3 months old with any fever above 100.4 degrees F, if the fever reaches 104 degrees F or higher at any age, or if the fever comes with lethargy, difficulty breathing, rash, stiff neck, persistent vomiting, or the child looks seriously ill. For most children over 3 months with fevers below 104 degrees F who are alert and drinking fluids, a telemedicine visit can evaluate the child and provide treatment guidance without an ER trip.

Fever Guidelines by Age

The age of your child changes the urgency level significantly:

Newborns (0-3 Months): Seek Immediate Care

Any fever at or above 100.4 degrees F (38 degrees C) in a baby under 3 months requires immediate in-person medical evaluation. Do not wait, do not treat with medication first, and do not use telemedicine as the first step. Go to the emergency room or call 911.

Why: Newborns have immature immune systems and cannot localize infections. A fever in this age group can indicate a serious bacterial infection (meningitis, urinary tract infection, bloodstream infection) that needs urgent lab work and potentially IV antibiotics.

Infants (3-6 Months): Contact a Doctor

A fever above 101 degrees F in this age group warrants a doctor’s evaluation. A telemedicine visit can help assess the child if:

The baby is feeding normally
The baby is alert and responsive
There are no other alarming symptoms

Older Infants and Toddlers (6 Months - 3 Years): Telemedicine Appropriate for Most

Most fevers in this age group are caused by common viral infections. A telemedicine visit is appropriate when:

Fever is below 104 degrees F
The child is drinking fluids
The child is responsive and can be consoled
Symptoms suggest a common illness (runny nose, cough, ear tugging)

Children Over 3 Years: Telemedicine Works Well

Older children can communicate their symptoms, making telemedicine evaluation effective. Fevers below 104 degrees F in children who are alert, drinking, and do not appear seriously ill are good candidates for a video visit.

When Telemedicine Helps with a Child’s Fever

A Virtual ER telemedicine visit with a board-certified physician can:

Assess the child on video — The doctor observes your child’s behavior, alertness, breathing, and appearance through the camera.
Determine the likely cause — Ear infections, cold and flu, sore throat, rashes with fever, and stomach bugs are commonly diagnosed via telemedicine.
Prescribe medication — Antibiotics for bacterial infections (ear infections, strep throat), anti-nausea medication, or other treatments sent to your pharmacy.
Provide dosing guidance — Correct acetaminophen (Tylenol) and ibuprofen (Motrin/Advil) dosing by weight.
Determine if in-person care is needed — Your doctor tells you clearly if your child needs to be seen in the ER.

Virtual ER has a board-certified pediatrician on the team who specializes in treating children.

Red Flags: Go to the ER or Call 911

Take your child to the emergency room or call 911 if they have a fever with any of these:

Any fever in a baby under 3 months old
Difficulty breathing — Rapid breathing, nostril flaring, ribs showing with each breath, grunting
Extreme lethargy — Difficult to wake up, not responding normally, limp
Rash that does not blanch — Press on the rash with a clear glass; if it does not fade with pressure, seek emergency care (possible meningococcal infection)
Stiff neck — The child resists bending their chin to their chest
Persistent vomiting — Unable to keep any fluids down for several hours
Signs of dehydration — No tears when crying, no wet diapers for 6+ hours, sunken fontanelle in infants
Seizure — Febrile seizures can occur in young children with rapid temperature rises
Fever above 104 degrees F that does not respond to medication
The child looks seriously ill — Trust your instincts as a parent

Home Management of Fever in Children

While waiting for your telemedicine visit or after receiving guidance from your doctor:

Medication

Acetaminophen (Tylenol) — Safe for children 2 months and older. Dose by weight, not age. Give every 4-6 hours as needed.
Ibuprofen (Motrin/Advil) — Safe for children 6 months and older. Dose by weight. Give every 6-8 hours as needed.
Never give aspirin to children under 18 — risk of Reye syndrome.
Do not alternate medications unless specifically instructed by your doctor.

Comfort Measures

Dress lightly — One layer of clothing. Over-bundling can raise body temperature.
Offer fluids frequently — Water, diluted juice, breast milk, or formula. Popsicles for older children.
Lukewarm bath — Can provide comfort. Never use cold water or alcohol rubs.
Rest — Let the child sleep if they want to.
Monitor — Check temperature every 4 hours and watch for changes in behavior.

What Not to Do

Do not force-feed a child with a fever — hydration is more important than food.
Do not send a feverish child to school or daycare.
Do not panic — fever is the body’s natural response to infection and is usually not dangerous by itself.

Common Causes of Fever in Children

Your telemedicine doctor evaluates which of these common causes is most likely:

Viral upper respiratory infections — The most common cause. Runny nose, cough, mild sore throat.
Ear infections — Often follows a cold. Ear tugging, irritability, trouble sleeping.
Strep throat — Sore throat, fever, stomach ache, no cough. More common in children over 3.
Stomach viruses — Fever with vomiting and/or diarrhea.
Roseola — High fever for 3-5 days followed by a rash as the fever breaks. Common in children 6 months to 2 years.
Hand, foot, and mouth disease — Fever, mouth sores, rash on hands and feet.
Urinary tract infections — Especially in girls. Fever may be the only symptom in young children.

How to Start a Telemedicine Visit for Your Child

Go to virtualers.com — Tap “Start a Telemedicine Visit.” Available 24/7.
Enter your child’s information — Age, weight, symptoms, temperature reading, and any medications given.
Have your child nearby — The doctor will want to see your child on camera, observe their breathing and behavior, and may ask you to show the throat, ears, or any rash.
Get treatment — Prescriptions are sent to your pharmacy. Your doctor provides clear instructions on what to watch for.

Frequently Asked Questions

Can a telemedicine doctor diagnose an ear infection in my child?

Yes, in many cases. While the doctor cannot look inside the ear with an otoscope via video, the combination of symptoms — fever, ear tugging, irritability following a cold, and the child’s age and history — allows an experienced physician to make a confident clinical diagnosis and prescribe antibiotics when appropriate.

Should I bring my child’s fever down before the telemedicine visit?

You can give age-appropriate fever medication for your child’s comfort, but you do not need to wait for the fever to break before starting the visit. Tell the doctor the highest temperature recorded and when medication was last given.

Is telemedicine safe for pediatric care?

Yes. Telemedicine is well-established for pediatric care and endorsed by the American Academy of Pediatrics for appropriate conditions. A parent or guardian must be present during the visit. For conditions requiring physical examination or lab work, your doctor will direct you to in-person care.

My child has a fever every time they get sick. Is that normal?

Yes. Fever is the body’s immune response to infection and is common in young children, who may have 6-10 viral infections per year. Recurrent fevers with illness are normal. However, fever without an obvious source that recurs on a pattern (such as every few weeks) should be evaluated by your pediatrician for underlying causes.

Medically reviewed by Dr. Mario Quintanilla, MD — Chief Medical Director, Bellaire ER. Last reviewed: July 2026.