Antiviral therapy refers to the treatment and management of viral infections using medications or other therapeutic approaches. It aims to inhibit the replication and spread of viruses in the body, thereby reducing the severity of symptoms and preventing complications. Antiviral drugs work by targeting specific viral enzymes or proteins involved in the viral life cycle, preventing them from multiplying or infecting healthy cells. Antiviral therapy can be used to treat a wide range of viral infections, including influenza, HIV, herpes, hepatitis, and other viral illnesses. It is important to note that antiviral therapy is most effective when started early in the course of the infection.