Measles is an acute viral infection.  Initial symptoms usually start within 7 to 14 days of infection but can incubate up to 21 days and may include high fever; cough; runny nose; and red, watery eyes.  Two to three days after symptoms begin, tiny white spots may appear inside the mouth.  Three to five days after symptoms begin, a rash breaks out.  The rash usually begins as flat red spots on the face at the hairline, and then spreads downward to the neck, trunk, arms, legs, and feet.  The rash may become raised and join together as the rash spreads.  After a few days, the fever and rash fade.  Possible complications of Measles include ear infection, pneumonia, and encephalitis (swelling of the brain). For more information: Measles