Childhood emergency rash usually heals in 7 to 10 days, 5 to 7 days for fast cases and 7 to 10 days for slow cases. Childhood emergency rash, also called infant roseola, is an acute infectious disease of pediatrics caused by a virus, with high fever as the main symptom in the early stage. In the cooling or fever appeared after the rash, usually face, trunk, limbs see dark red rash, 1 ~ 2 days rash out of the end, 3 ~ 4 days rash gradually disappear, disappear after the disease will be self-cured, usually 7 ~ 10 days will be self-cured, fast 5 ~ 7 days self-cured, slow 7 ~ 10 days self-cured. The main care of toddler emergency rash is high fever period, need to pay attention to observe whether there is no fever convulsion (due to high fever caused by convulsions convulsions) phenomenon, body temperature more than 38.5 ℃ above the timely medication to lower the temperature, such as ibuprofen suspension, acetaminophen and so on. Early childhood emergency rash is recommended to go to the regular hospital in a timely manner.