Generally, after a child has a fever, the gastrointestinal function is in a state of disorganization, so in this case the child will be reluctant to eat, and this is mostly normal at this time. It is recommended that parents can change the diet for their children, such as from the previous normal diet, to light, easy to digest food. If the child is still in the stage of breastfeeding or formula feeding, and has not begun to add complementary foods, then you can continue to take the formula feeding, but the formula can be appropriately reduced concentration. In addition, after the fever, you should give your baby more water to ensure that the circulating blood volume is sufficient to avoid dehydration. If it is an older child can drink some rice soup. Rice soup can supply the child with carbohydrates, and its water is sufficient to facilitate the absorption of the child’s intestines and stomach. You can also drink some green bean soup or fresh fruit juice, green bean soup has a heat detoxification summer role. Fresh fruit juice is mainly composed of vitamins, minerals and carbohydrates, only a small amount of plant protein, easy to absorb. In the summer, you can drink watermelon juice, there is heat relief, thirst, diuretic effect. In the fall and winter seasons, you can drink fresh pear juice, which has the effect of moistening the lungs, clearing the heart, relieving cough and expectorant. Fresh orange juice, with expectorant, phlegm, clearing the lungs, pass the role of collaterals and so on. It should be noted that the child should not suddenly increase the food that has not been eaten in the past during the period of fever, so as not to cause diarrhea.