An 11-month-old baby with a fever of 39°C needs to be treated immediately to reduce the fever. Acetaminophen granules can be given orally to the child, usually after 4-6 hours it is possible to repeat the medication 1 time, and the medication should not be used more than 4 times a day. The specific dosage should be based on the weight and according to the instructions. You should also wipe your child’s armpits, groin, neck and other places rich in large blood vessels with warm water to help reduce fever and reduce the use of antipyretics. Fever 39 ℃ is a high fever, you need to put antipyretic paste on the baby’s forehead, antipyretic paste although the effect of reducing fever in general, but will make the child feel more comfortable. At the same time, we should also pay attention to the ventilation of the room and change the child’s sweaty clothes and bedding in time to prevent the occurrence of secondary cold. If the child has a stuffy nose, runny nose, or sore throat, he or she should take Pudilan Oral Solution. If there is diarrhea, you need to take Simethicone. If none of the above symptoms are present, it is better to take your child to the hospital for a comprehensive examination.