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Viral rash (viral exanthem)

Also called: Viral rash, viral exanthem

A widespread rash that comes with or after a virus, common in children. Most fade in days.

Common inChildren
UsuallyHarmless

Overview

Many viruses cause rashes, like roseola, fifth disease, and hand, foot, and mouth disease.

Most rashes fade in a few days without treatment.

Symptoms

Common signs:

  • Rash with a virus

Less common

  • Fever
  • Itching

When to get medical care

Call 911Rash that doesn't fade when pressed with fever (purple spots).
Get care todayRash with high fever or a very sick child.
See a doctor soonRash lasting more than a week.

Causes

Viruses.

Does it spread or run in families?

  • The illness itself usually isn't passed to others, but some germs that cause it can spread.
  • Washing hands often helps.

Who is more likely to get it

  • Children

Diagnosis

Diagnosis by looking.

Treatment

Comfort care.

Self-care

  • Rest
  • Fluids

Medicines

Medicines that may help:

MedicineHelps withGood to know
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 primary care provider (family doctor or internist).
  • They may send you to a dermatologist (skin doctor).

Back to school, work, or sports

  • Most people keep up normal school and work. Rest when you need to.

Children, pregnancy, and older adults

  • Pregnancy: Tell your doctor about rash exposures.

Pregnancy and breastfeeding

  • If you're pregnant or planning to be, tell your prenatal provider about this condition.
  • Some skin medicines, like isotretinoin and retinoid creams, aren't safe in pregnancy.
  • 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.

Outlook

Fades.

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

Questions to ask

  • Is this rash contagious?

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 Viral rash (viral exanthem)

Sources

Last updated 2026-11-12.