In general, in the absence of allergies, children with colds and fevers can eat watermelon in moderation without any harm. Colds and fevers are usually caused by pathogens such as rhinovirus, adenovirus, influenza virus, and hemolytic streptococcus, and clinically manifested as fever, cough, and runny nose, etc. However, there is no food contraindication, so children can eat watermelon in moderation even when they have colds and fevers. However, there are no food contraindications, so children can eat watermelon in moderation even when they have a cold and fever, but avoid eating watermelon that is too cold. In addition, as the pathological state of cold will affect the activity of digestive enzymes and lead to a decline in the child’s digestive function, it is recommended to reduce the child’s daily food intake to avoid gastrointestinal discomforts such as abdominal distension and abdominal pain. In the case of a child with a cold and fever, it is recommended to go to the pediatrician as soon as possible and standardize the treatment under the guidance of the doctor to ensure a good prognosis of the disease.