Some of the most common initial symptoms of roseola in children are a high fever that comes on suddenly, red eyes, irritability, runny nose and sore throat, according to MedlinePlus. The pink- or rose-colored rash doesn't appear until two to four days after the child becomes sick.
Roseola is a viral infection most often found in children between the ages of 6 months and 1 year, but it can occur in children between 4 months and 4 years, Medline Plus explains. Symptoms typically begin between five and 15 days after exposure.
The fever that occurs as one of the first symptoms can run as high as 105 degrees Fahrenheit and last anywhere from three to seven days, MedlinePlus states. Giving the child acetaminophen (Tylenol) or ibuprofen (Advil) and cool baths can help bring the fever down. Besides treating the fever, there is no other treatment for roseola.
The rash begins on the trunk of the body and moves outward to the limbs, neck and face, reports MedlinePlus. It appears as small sores that are slightly raised that are reddish-pink and usually do not itch. Sometimes, swollen lymph nodes develop at the back of the scalp or the neck.
Some children with roseola suffer convulsions brought on by the sudden high temperature, MedlinePlus warns. Seek immediate medical help if this happens.