Flu shots are useful. Influenza consists of influenza virus and parainfluenza virus, and patients will show symptoms such as dizziness, headache and fever. For the more serious patients, oral medication can not be effectively relieved, then under the guidance of the doctor, through the way of injection for treatment. For influenza, the injection is mainly intramuscular, using ribavirin injection, acyclovir and so on. Because such drugs have a certain antiviral effect, can effectively kill the influenza virus, so as to alleviate the condition; but some patients with influenza are also combined with bacterial infection, it is recommended that under the guidance of the doctor injection of cephradine, ofloxacin and other drugs for the treatment of such drugs, such drugs antibacterial effect is stronger, on the mycoplasma chlamydia has a good antibacterial effect. Influenza patients should go to the local hospital in a timely manner, according to their own severity to take the right way to treatment.