You will not get a fever from taking ribavirin. Ribavirin is a broad-spectrum antiviral drug that mainly works by inhibiting the replication of many DNA and RNA viruses. It has very good viral inhibition effect on influenza virus and respiratory syncytial virus. Therefore, ribavirin is often used to treat epidemic hemorrhagic fever, respiratory syncytial virus-induced bronchitis, as well as severe pneumonia, viral upper respiratory tract infections, etc., and does not cause fever. After taking ribavirin, there are still symptoms of fever, there may be bacterial infection, bacterial infection, the toxin produced by bacteria as endogenous pyrogen, the body temperature center, stimulate the rise in body temperature to appear fever and other symptoms. And there are some thermogenic sources in the necrotic material of the tumor, which can also cause fever after being released into the blood. The causes of fever are mainly considered to be bacterial infection, tumor and other factors. It is necessary to go to the hospital for further examination to clarify the cause of the disease and treat the cause.