The chickenpox vaccine is indicated for children from 12 months of age and adults who have never had chickenpox before.

Only apply methylene blue when the chickenpox blisters break. At this time, applying methylene blue directly to the broken blisters will shrink the blisters and prevent bacterial infection, disinfecting the blisters to dry quickly.

Chickenpox is transmitted through the respiratory tract, and children are at the highest risk of infection. However, adults who are not immune can also get the disease, and chickenpox during pregnancy is especially dangerous.