Roseola is sometimes called the “baby measles” because it occurs most often between 6 months and 2 years. Caused by a strain of the herpes virus, Roseola has some alarming symptoms:

sudden high fever (102 to as high as 105 degrees); followed by an abrupt bloom of a red, spotty, slightly raised rash
decreased appetite
mild diarrhea
slight cough
runny nose
mild irritability, and drowsiness
swollen glands (rarely)

Sometimes, convulsions occur from the high fever. While the convulsions do not indictate serious neurologic disease.

they can be frightening to witness and should be reported to your physician right away.