Redness in infant cheeks can be physiological or pathological. If the infant’s facial skin is subjected to emotional factors, changes in environmental temperature, and the filling of facial capillaries, etc., redness of the cheeks will occur. Considering that the child’s skin is poorly tolerant to air changes, the facial capillaries are prone to expand when they encounter changes, which is a relatively common phenomenon, usually without medication, and do not worry. You can give your baby more plain water and keep the room at the right temperature. If the cheeks are red due to food accumulation, you must control your diet, eat lightly and do not give meat intake. You can take medication to help digestion, such as pediatric anorexia pills. If the above causes are ruled out, physical cooling can be given when the fever is high, by using 25%-50% alcohol baths, and also by wiping the armpits, neck, groin, palms and feet with warm water. When the body temperature exceeds 38.5°C, oral ibuprofen can be given. If it is a case of allergy, routine blood tests and laboratory tests for allergens are needed. Once diagnosed, active anti-allergy treatment should be given. Oral loratadine, cyproheptadine and vitamin C are recommended. Infants should wear gloves on both hands before bedtime, and nails should be cut short or properly restrained to prevent scratching. Infants should be clothed in cotton, loosely fitting, and given 1-2 hours of daily skin exposure or appropriate vitamin D3 supplementation.