Ice packs on the forehead can mostly reduce fever, but if the fever is serious and the causative factors have not been removed, the effect of reducing fever may not be good, it is recommended to use antipyretic drugs and remove the cause of the disease. Ice is a physical cooling method, you can wrap a towel with ice and apply ice to the forehead area, which can lower the body surface temperature and help dissipate heat, so it can play a certain role in reducing fever. However, because the temperature of ice is relatively low, so avoid too long. Ice forehead is suitable for fever is not particularly serious, the patient’s body temperature generally does not exceed 38.5 ℃. If the fever is more serious and the body temperature has exceeded 38.5℃, simply using ice on the forehead may not reduce the fever effectively, you need to combine with oral medication to reduce the fever, such as ibuprofen, acetaminophen, etc., to try to reduce the body temperature to normal. In addition, whether it is ice or medication to lower the fever, if the causative factors have not been removed, the fever may still occur. Therefore, along with symptomatic cooling, you also need to carry out allopathic treatment, for example, fever caused by bacterial infection, you can take oral cefaclor, amoxicillin, etc. If the fever is caused by viral infection, ribavirin, oseltamivir, etc. can be used. If the fever is caused by tumorigenic factors, it can be treated by surgery and chemotherapy. The combination of symptomatic as well as cause-specific treatment is the only way to achieve both the symptoms and the root cause of the fever, so that the fever can be completely improved.