There is no clinical statement on which antiviral drug is more effective, patients need to choose reasonable antiviral drug treatment according to their own situation under the guidance of doctors. Usually, for HIV-infected patients, the use of lamivudine, zidovudine, emtricitabine, tenofovir and other reverse transcriptase inhibitors as prescribed by the doctor can be used, but also the use of efavirenz, nevirapine and other non-nucleoside reverse transcriptase inhibitors treatment. For cytomegalovirus infection, patients may choose to be treated with antiviral drugs such as ganciclovir, cidofovir, and adefovir. If the patient has viral hepatitis, then antiviral drugs such as lamivudine, entecavir, acyclovir, and valacyclovir may also be used as prescribed. And antiviral drugs such as acyclovir, ganciclovir, and vasiclovir may also be used to treat herpes virus infections. For influenza virus and respiratory virus, patients can also use antiviral drugs such as amantadine, ribavirin and oseltamivir for treatment. Patients are advised to choose reasonable antiviral drugs for treatment according to their own conditions and after evaluation by their doctors to avoid delay.