It is not normal for babies to have recurrent fever after taking Pertussis vaccine, and reasonable measures should be taken in accordance with the doctor’s advice in a timely manner. Pertussis is a vaccine made of pertussis vaccine, diphtheria toxoid and tetanus toxoid, which can prevent pertussis, diphtheria and tetanus at the same time. After vaccination, babies may have adverse reactions such as low-grade fever, redness and swelling at the injection site, most of which do not require special treatment and can be relieved on their own. However, if the baby has repeated fever, it is an abnormal situation, and corresponding measures should be taken in time. General baby temperature is lower than 38.5 ° C, you can give the baby appropriate drink more water, and through warm water wipe the body, cool towel forehead wet compresses and other ways to physical cooling. If the baby’s temperature is higher than 38.5 ° C, you need to take ibuprofen, acetaminophen and other antipyretic drugs under the guidance of a doctor, and you also need to consult a doctor in a timely manner. It is recommended to take reasonable measures and seek medical treatment in a timely manner if your baby has recurring fever after taking Pepto-Bismol.