What disease is a large number of red rash appearing on the face after persistent high fever

For one-year-olds, a large amount of rash appears on the body after fever, usually infantile rash. Infant rash is an acute febrile and eruptive disease of infants characterized by heat regression and numerous rose-red maculopapules on the skin. Secondly, blood diseases such as acute leukemia cannot be ruled out.