When you have a fever, you can eat light, easy to digest, high nutrition food, avoid spicy, stimulating, greasy food, and need to use antipyretic drugs according to the situation. When the human body has fever, all the tissues and organs will be affected, such as the gastrointestinal tract, the digestive organs in fever, absorption and digestion will be inhibited, so we need to eat light, easy to digest and high nutritional food for fever patients to supplement the nutrition, in order to promote the recovery of the disease. Moderate amount of protein-containing foods, such as eggs, milk, fish and fruits and vegetables rich in vitamins and dietary fiber, such as oranges, spinach and other foods. Greasy, spicy and stimulating foods need to be avoided to avoid digestive discomfort, such as diarrhea and abdominal pain. Meanwhile, according to the fever situation, appropriate use of fever-reducing drugs, such as acetaminophen, ibuprofen and so on. For the cause of fever, attention should be paid to the treatment of the cause. Drugs should be taken under the guidance of a physician, and at the same time can be sent to the hospital for treatment.