For the human body to have fever, it is often recommended to use Merrill antipyretic drugs for treatment when the body temperature exceeds 38.5℃. Because the body’s fever is a self-defense against viruses and other disease-causing factors, it is beneficial for patients to kill viruses in the case of low to moderate fever. In addition, the use of physical cooling methods in low to moderate fever, most patients can also harvest better fever reduction effect. In daily life, the more widely used is to use warm water for body rubbing, or the use of cold compresses and ice packs and other methods for local cooling, and even can use diluted alcohol for local rubbing baths to achieve the effect of antipyretic. It is also necessary to monitor the body temperature, if the patient through self-medication for more than 3 days still have recurrent fever, need to go to the hospital for further testing to find the cause of fever.