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
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:
| Medicine | Helps with | Good to know |
|---|---|---|
| Fever reducers | Fever | No 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.
Sources
Last updated 2026-11-12.