Roseola infantum is a common acute febrile and exanthematous disease in infants and young children, caused by human herpesvirus types 6 and 7. Its characteristic is that three to five days after the onset of fever, the fever suddenly drops and rose-pink maculopapular rashes appear on the skin, reducing the severity of the condition, which can be cured if there are no complications. The main treatment for this condition involves enhanced care, ensuring adequate rest for children with mild symptoms, providing sufficient hydration, and offering easily digestible foods. If there is high fever, fever reduction measures can be taken, including physical cooling and oral antipyretics. Also, during high fever, be vigilant for convulsions and, if necessary, some antiviral treatments can be used, although there are no specific antiviral drugs available. Pay attention to changes in the baby's mental state and body temperature, etc.