Fever due to food accumulation occurs in infants and young children, and the duration is mainly related to the severity of the baby’s condition and the individual’s physique, which should be analyzed in detail and not generalized. If the baby is due to occasional overfeeding or eating more greasy food leading to accumulation of food fever, usually lasts for 2-3 days can be cured. Parents can, under the guidance of the doctor, give the baby timely take digestive drugs, while physical cooling. If the baby is due to poor eating habits, such as long-term overeating, or poor health, often constipation and other conditions caused by food accumulation fever, usually lasts about half a month, the specific time varies from person to person. If the baby’s temperature exceeds 38.5℃, oral ibuprofen suspension is recommended, together with antipyretic suppositories for treatment. In daily life, parents should pay attention to avoid overfeeding their children, and can drink more warm boiled water, diluted rice, and eat more vegetables and fruits, etc., which can help promote defecation.