DNA viruses infect the human body, and the most ideal treatment at this time is to apply antiviral drugs directly to inhibit the reproduction of the virus and to remove the virus to directly cure the disease, but clinically there are no effective drugs for the vast majority of DNA viruses. Therefore, the effectiveness of antiviral drugs should be weighed against the harm caused by the DNA virus to the body, and a comprehensive judgment should be made as to whether antiviral treatment is needed. Hepatitis B is a DNA virus infection resulting in the possibility of cirrhosis or liver damage, but also may not cause any damage, anti-hepatitis B virus drugs must be taken for a long time, only to be able to control the virus to a certain extent, but can not completely remove the virus. Therefore, there is no need to take anti-hepatitis B virus drugs for a long time if the virus does not cause any damage to the body. This is because taking them at this time will not receive significant results, but will increase the burden on the patient, and eating antiviral drugs does not have a particularly beneficial effect on the liver, so you can choose not to eat. Once the associated liver inflammation or cirrhosis is caused, it is necessary to take this medication for a long time to block further damage to the liver.