If your baby has a fever and cries a lot, you should look for the cause to treat the symptoms. Babies can feel uncomfortable when they have a fever as their body temperature is relatively high. Physical cooling can be used to lower the body temperature. If the body temperature is below 38.5℃, you can take a bath or apply fever-reducing patches to help lower the temperature. If it is over 38.5°C, fever-reducing medications such as oral acetaminophen will be needed to assist in lowering the temperature. In addition, need to clarify the cause of fever, if it is due to oral ulcers, oral herpes and fever caused by symptoms, because the pain of the wound causes the baby to cry, so we need to strengthen the oral cavity care, to avoid wound infection symptoms worsened. There is also because of digestive diseases and induced by crying, such as bloating, diarrhea, also need oral probiotics and other drugs to regulate gastrointestinal function, which is conducive to alleviate the symptoms of crying.