Roseola in infants is caused by human herpesvirus type 6 or type 7, characterized by high fever accompanied by a rash. The illness often starts with a sudden, acute fever, which can last three to five days. After the fever subsides, a rash appears, and once the rash fades, the illness generally resolves itself. During this infectious illness, dietary recommendations include light and easily digestible foods, as the baby's digestive function can decrease due to the fever. Therefore, greasy, spicy, and irritating foods should be avoided. It is advised to provide foods that are easy to digest, such as milk, porridge, noodles, vegetables, and mild fruits.