Adults with chickenpox can prevent infecting children by isolating the source of infection, protecting susceptible people and vaccinating children. 1. Isolate the source of infection: adults with chickenpox should pay attention to isolation, try to avoid contact with children, used items, avoid letting children contact. In addition, they should wash their hands regularly and wear masks to prevent cross-infection. 2. Protect the susceptible people: For children, the resistance is relatively weak, easy to be infected. Pay attention to the protection, minimize contact with children, adults with chickenpox should be actively given treatment, such as acyclovir and so on. 3. Vaccination: children can be vaccinated against chickenpox to prevent infection, if the child’s immunity is relatively low, contact with adults with chickenpox need to be injected as soon as possible after the immunoglobulin, which can be a better degree to prevent the occurrence of chickenpox. If adults have chickenpox, it is recommended to go to the hospital in time, and actively cooperate with the doctor to carry out the corresponding treatment, to avoid infecting the children.