Is roseola dangerous?

No: Roseola is almost always a harmless viral illness also called 6th disease. It affects children up to 2 years of age, causing fever and a rash. The illness lasts about 1 week without sequelae. It occasionally affects adults also but is also a mild infection in them.

Generally not.: It is a viral illness with a fever and a rash, occurring in young children. With fluids and over-the-counter fever reducers such as acetaminophen (Tylenol) or ibuprofen (Motrin/Advil), a child will recover in a couple of days. However, if there are any concerns about the diagnosis or what else to do, please see your child's pediatrician.