Roseola (roseola infantum) is a mild illness caused by a virus. It is generally harmless and is most common in children 6 months to 2 years of age. It is rare after age 4.
Roseola often starts with a sudden high fever of 103 °F (39.4 °C) or higher that can last 2 to 3 days or longer. After the fever ends, a rosy-pink non-itchy rash may appear on the trunk, neck, and arms. It can last 1 to 2 days. Rarely, a sore throat, stomachache, vomiting, and diarrhea may occur.
A child with roseola may be fussy or irritable and eat less but usually acts normally. Sudden high fevers can sometimes cause a fever seizure, but roseola is most often a harmless infection.
Roseola is diagnosed through a medical history and physical exam. The doctor often knows it's roseola if your child had a fever and now has a distinct rash.
The roseola fever can be managed with acetaminophen (such as Tylenol) or ibuprofen (such as Advil or Motrin). Be safe with medicines. Read and follow all instructions on the label. If you give medicine to your baby, follow your doctor's advice about what amount to give. Do not give aspirin to anyone younger than 20 years of age because of the risk of Reye syndrome.
The roseola rash will go away without medical treatment.
Call 911 anytime you think your child may need emergency care. For example, call if:
Call your doctor now or seek immediate medical care if:
Watch closely for changes in your child's health, and be sure to contact your doctor if:
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