Fever caused by chronic sinusitis in children is generally caused by the elevation of pyrogens in the body due to infection, and it is necessary to reduce the fever by adjusting the diet, physical therapy or the use of drugs. 1. Adjust the diet: children with chronic sinusitis caused by fever need to eat a light diet, avoid spicy and stimulating food, drink a moderate amount of water to speed up the body’s metabolism at the same time, to help take away part of the body heat. 2. Physical therapy: If the body temperature does not exceed 38.5 degrees, you can take physical methods to reduce fever. Such as the use of wet towels to wipe the forehead or armpits and other parts of the body through evaporation to help take away part of the body heat, reduce body temperature. 3. Use of drugs: If the baby’s fever is more than 38.5 degrees, you can use drugs to reduce fever, such as acetaminophen, ibuprofen and so on. Children with chronic sinusitis caused by fever, in addition to reasonable fever, but also for chronic sinusitis for the appropriate treatment. It is recommended to take the child to the doctor in time to improve the relevant examination, standardized treatment. The use of drugs should be used under the guidance of a doctor, do not blindly use drugs.