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Roseola

Also called: Roseola, sixth disease, roseola infantum

A common virus in babies and toddlers: 3 to 5 days of high fever, then a pink rash on the chest and back right as the fever goes away.

Age6 months to 2 years
FeverOften 103°F+ for 3 to 5 days
RashAfter fever ends; not itchy

Overview

Children often act fairly well despite the fever.

The fast fever rise can trigger a febrile seizure in some children.

Symptoms

Common signs:

  • High fever then rash
  • Rash appearing after a fever goes away

Less common

  • Fussiness
  • Runny nose

When to get medical care

Call 911A seizure lasting more than 5 minutes, trouble breathing, or a child who is hard to wake.
Get care todayAny seizure, a baby under 3 months with fever, or signs of dehydration.
See a doctor soonFever lasting more than 3 days.

Causes

Human herpesvirus 6 or 7.

Does it spread or run in families?

  • Yes, it can spread from person to person.
  • How it spreads: saliva or close contact.
  • Don't share towels, hats, combs, or bedding while it's being treated.

Who is more likely to get it

  • Toddlers

Possible complications

Diagnosis

Diagnosis is based on the pattern.

Questions you may be asked

  • How long the fever lasted

The exam

A full exam to rule out other causes.

Treatment

Comfort care.

Self-care

  • Offer fluids often
  • Dress your child lightly
  • Use fever medicine for comfort

Medicines

Medicines that may help:

MedicineHelps withGood to know
Fever reducers
FeverNo ibuprofen under 6 months; dose by weight.

OwieClear doesn't give doses: follow the label or your healthcare professional. Medicine names here are examples, not a full list.

Prevention

To prevent spread:

  • Handwashing

Which doctor treats this

  • Start with your child's pediatrician.

Back to school, work, or sports

  • Keep your child home until they've had no fever for 24 hours without fever medicine and feel better.
  • For the next few days, wash hands often and teach them to cough into an elbow.

For caregivers

  • Learn the warning signs and when to call the doctor or 911.
  • Keep a list of your child's medicines, doses, and doctors on your phone.
  • Tell teachers, coaches, and sitters what to watch for and what to do.
  • Take breaks and ask for help. Caregivers need care too.

Outlook

Clears on its own.

Research studies

Research studies test new ways to find and treat health problems. Some are looking for volunteers. Talk with your doctor before joining one.

Search ClinicalTrials.gov for studies on Roseola

Sources

Last updated 2026-11-12.