High fever and diarrhea, to cause great attention, may be acute gastroenteritis, bacillary dysentery, influenza and other diseases, acute gastroenteritis can be used montelukast and other medications, bacillary dysentery with quinolones and other antimicrobial drugs, influenza acetaminophen tablets and other medications. 1. Acute gastroenteritis: acute gastroenteritis is a variety of factors leading to acute inflammation of the mucosa of the gastrointestinal tract, can be seen in bacterial infections, thus causing high fever and diarrhea symptoms, you can take medication, such as norfloxacin, montelukast, pay attention to allergies to the product is prohibited, the emergence of a mild constipation adverse reactions immediately stopping the drug and seek medical attention. 2. Bacterial dysentery: is caused by Shigella bacteria intestinal infectious diseases, the main symptoms of diarrhea, fever, mucus, pus and blood stools, etc., can be oral quinolone antibacterial drug therapy, such as levofloxacin hydrochloride tablets, pay attention to pregnant women and lactating women, patients under the age of 18 years old is prohibited, the emergence of agitation, anxiety, dizziness, and other adverse reactions to stop the drug immediately and consult a doctor. 3. Influenza: also known as influenza, is caused by influenza virus acute respiratory infectious diseases, such as gastrointestinal type mainly manifested as fever, diarrhea, etc., need to pay attention to rest, drink more water, increase nutrition, or symptomatic use of acetaminophen tablets, pay attention to the severe hepatic and renal insufficiency is prohibited, the emergence of urticaria and other discomforts stop the drug immediately. All of the above medications need to be taken under the guidance of a professional doctor, not blindly use drugs, high fever and diarrhea, seek medical attention to identify the cause, and then targeted treatment.