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Scarlet fever

Also called: Scarlet fever, scarlatina

A strep throat infection with a red, sandpaper-like rash, red tongue, and fever, mostly in children 5 to 15. Antibiotics cure it.

CauseStrep bacteria
RashSandpaper feel
Back to school12 to 24 hours after antibiotics, fever gone

Symptoms

Common signs:

  • Sore throat with red rash
  • Rough, sandpaper-like rash

Less common

  • Strawberry tongue
  • Fever

When to get medical care

Call 911Trouble breathing or a very sick child.
Get care todaySore throat with rash and fever.
See a doctor soonJoint pain or dark urine weeks later.

Causes

Strep bacteria.

Does it spread or run in families?

  • Yes, it can spread from person to person.
  • How it spreads: coughs, sneezes, or touch.
  • Washing hands often and staying home when sick help protect others.

Who is more likely to get it

  • Children 5 to 15

Possible complications

Diagnosis

A strep test.

Tests

Tests, if needed:

  • Rapid strep test:

Treatment

Treat and rest.

Self-care

  • Finish all antibiotics
  • Fluids and soft foods

Medicines

Medicines that may help:

MedicineHelps withGood to know
Antibiotics
Strep
Pain and fever relievers
Pain and 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

  • Handwashing

Which doctor treats this

  • Start with your child's pediatrician.

Back to school, work, or sports

  • Children and adults can go back to school or work after taking antibiotics for at least 12 hours and having no fever.

Pregnancy and breastfeeding

  • If you're pregnant or planning to be, tell your prenatal provider about this condition.
  • Some infections can pass to the baby during pregnancy or birth. Tell your provider if you've been exposed.
  • Don't start or stop any medicine on your own. Some are safe in pregnancy and some need to be changed.
  • Ask before taking any pain reliever. The FDA advises avoiding ibuprofen and naproxen after 20 weeks unless your doctor says to.
  • Breastfeeding: Most medicines are fine, but ask. The NIH LactMed database lists what's known about each one.

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

Cured with antibiotics.

Getting ready for your visit

Bring a list of your symptoms and medicines.

What to bring

  • A list of your medicines and supplements
  • Notes on when symptoms started and what makes them better or worse

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 Scarlet fever

Sources

Last updated 2026-11-12.