If the fever does not go down after 3 hours of fever-reducing injection, it means that the fever is particularly serious, and it is also possible that the disease causing the fever is particularly serious, so the fever-reducing injection does not solve the fever-reducing situation. This time, you need to find out the cause of the fever for treatment, the effect of fever reduction is better. In addition, you need to combine physical cooling methods, although the fever shot can not come down the body temperature, but the use of physical cooling methods can make the body temperature slightly lower, such as the temperature can be lowered to 38.5 degrees below, is relatively safe. You can use diluted white wine or alcohol to rub the skin of the patient’s whole body, the effect is better. There are many causes of fever, such as fever caused by serious infections. The symptoms of fever must be treated with appropriate antibiotics and antiviral drugs according to the type of infection before the fever can be resolved. Without anti-inflammatory treatment, the fever will often get worse. If the infection is bacterial, antibiotics such as cefradine and cefoperazone can be used. If the infection is viral, you can use ribavirin or even oseltamivir for antiviral treatment.