Roseola infantum is caused by human herpesvirus types 6 and 7, a common acute rash infectious disease in pediatrics, also known as baby roseola. Its main characteristic is high fever for 3-4 days, followed by a rash as the fever subsides. Since roseola infantum is clearly a viral infection, its treatment mainly involves symptomatic management. For children in pediatric emergency care, while actively managing symptoms, it is essential to ensure adequate hydration and nutrition, so normal diet is still necessary. However, the diet should be light and easy to digest. Foods that are difficult to digest, such as large fish, large pieces of meat, or raw and cold irritants like some beverages or colder foods, should be avoided.