Whether or not a child with a fever from immunization can take medication depends on the degree of fever and other physical manifestations. If the fever temperature does not exceed 38.5 ℃ can not take medication, if the fever temperature is above 38.5 ℃ and discomfort, you can give ibuprofen or acetaminophen and other drugs to reduce fever treatment. If accompanied by special symptoms, need to consult a doctor. 1. If a child only has a fever after vaccination and is not accompanied by other special symptoms, it may be a relatively common adverse reaction to vaccines, caused by the vaccine stimulation of the body’s immune mechanism resulting in an increase in body temperature: (1) body temperature within 38.5 ℃: belong to the state of low fever, you can not take drugs, through the physical cooling to reduce body temperature, such as warm water wipe, reduce wearing, lower room temperature. (2) Temperature above 38.5 ℃: you can take cooling medication, such as ibuprofen, acetaminophen, etc., during the use of medication to monitor changes in the body, there is no other abnormal discomfort without special treatment. 2. If a child’s fever persists after vaccination and is accompanied by headache, nausea, vomiting, depression, and a rash all over the body, it may be related to other causes, so pay attention to it and seek medical treatment in a timely manner. All of the above medications should be used under the guidance of a doctor, avoid self-medication.