Sudden fever in 8-month-old babies without any symptoms needs to be reasonably symptomatic antipyretic (e.g. physical hypothermia), and the cause of fever (e.g. infantile emergency rash) should be clarified and treated according to the cause of fever. For 8-month-old babies, fever is a common symptom. With elevated body temperature, babies may experience increased respiration and heart rate and discomfort, etc. According to the degree of fever, reasonable fever reduction is needed to alleviate the discomfort. If the temperature is not more than 38.5 ℃, you can warm water to wipe the body for physical cooling; for temperature more than 38.5 ℃, under the guidance of a physician, according to the baby’s body weight, the correct use of ibuprofen or acetaminophen antipyretic and so on. At the same time need to consult the doctor to clarify the cause of fever, such as toddler emergency rash, the baby in the early stage of the disease may only manifest fever, some may appear mild diarrhea symptoms, usually fever for 3 ~ 5 days, heat out of the rash, the disease is caused by human herpesvirus infection, the treatment can be used in four seasons antiviral combination treatment. The above drugs should be used under the guidance of a physician, and it is recommended that you consult a specialist to guide the treatment.