The patient’s sudden fever, dizziness and nausea are mainly considered to be caused by infectious diseases. For example, if the patient has an attack of acute cholecystitis or a lung infection or an acute upper respiratory tract infection, dizziness and nausea will appear during the fever, and there is also acute gastroenteritis. But infections in various parts of the body are accompanied by corresponding symptoms, for example, patients with acute gastroenteritis may have pain in the stomach, diarrhea, abdominal pain and other problems, for example, the patient may have coughing and coughing up sputum during lung infections. This situation requires the patient to consult the hospital to improve the blood test, as well as to clarify the site of infection, and then give targeted treatment. If the patient’s body temperature exceeds 38.5℃, oral antipyretic drugs are needed to relieve the patient’s dizziness and nausea. Body temperature down to normal, dizziness, nausea symptoms can be relieved.