Interferon can be used to treat herpes zoster, but only as an adjunctive therapy, to achieve better antiviral effects should be used antiviral drugs. Interferon has a certain role in regulating immune function, but also can be used to anti-virus, anti-infection, which is mainly the use of viruses or drug inducers to induce the body to produce a glycoprotein, so as to achieve the improvement of immune function, so that the body to produce the ability to fight against germs. Usually after the virus or bacteria infect the human body, only through the autoimmune system to produce interferon and other cytokines, the pathogenic bacteria can be eliminated, so interferon is only as an adjunctive therapeutic drugs, want to achieve good results in the treatment of herpes zoster should be timely according to the course of treatment, follow the doctor’s instructions for the use of antiviral drugs, such as acyclovir, and so on. Interferon can be used to treat herpes zoster, but it should be followed by regular antiviral treatment in a timely manner, and it is recommended that it be used under the guidance of a physician.