Fever after polio or DPT vaccination can be considered as a side effect of vaccination or induced by other diseases, at this time we need to identify the cause of the disease and take physical cooling or medication for symptomatic treatment. 1. After polio or DPT vaccination, some babies have a large body reaction, and the common symptom is low fever, usually the temperature is less than 38.5 ℃, at this time, you can take physical cooling to relieve, such as antipyretic patches, drinking warm water, etc. This situation can be temporarily observed, and physical cooling can be used to relieve the fever. This situation can be temporarily observed, physical cooling can be self recovery. 2. If the fever is persistent or accompanied by other symptoms, may have caused other diseases, such as upper respiratory tract infections, etc., this time need to be further clarified according to the baby’s symptoms, such as abdominal cough, coughing up sputum, etc., it is recommended to go to the relevant departments of the hospital, pay attention to inform the doctor about the history of vaccination, according to the cause of the use of medication prescribed by the doctor.