How is it treated?

The roseola fever can be managed with acetaminophen (such as Tylenol), ibuprofen (such as Advil or Motrin), or sponge baths. 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.

Source: http://www.webmd.com

What are the symptoms?

Roseola often starts with a sudden high fever [103°F (39.4°C) to 105°F (40.6°C)] that lasts 2 to 3 days, although it can last up to 8 days. The rapid increase in temperature may be the first sign of roseola and often occurs before you realize that your child has a fever. The fever ends suddenly.

After the fever ends, a rosy-pink rash may appear mostly on the trunk (torso), neck, and arms. The rash is not itchy and may last 1 to 2 days.

In rare cases, a sore throat, stomach ache, vomiting, and diarrhea occur.

A child with roseola may appear fussy or irritable and may have a decreased appetite, but most children behave almost normally.

Source: http://www.webmd.com