What to take after a viral infection in children, need to be based on the specific situation, as follows: 1, specific antiviral drugs, if the viral infection is a specific virus, and there is a corresponding specific drugs, you can apply specific antiviral drugs in a timely manner, for example, after suffering from influenza A virus or influenza B virus, we should apply oseltamivir particles to anti-influenza virus treatment in a timely manner. In addition, after suffering from cytomegalovirus or EBV infection, you can apply ganciclovir to deal with; 2, antiviral drugs to clear heat and detoxify the class, if the viral infection is a common virus, there is no particularly effective drugs, you can apply jin yinhua, dandelion, panacea and other herbs to clear heat and detoxify the class.