Contact with chickenpox is not necessarily contagious. Although chickenpox is a relatively contagious disease that can be transmitted through respiratory droplets and also through direct contact with herpes fluid, if the person who comes into contact with chickenpox wears a mask, the respiratory droplet route is likely not to be contagious. If you touch the skin of a person with chickenpox directly with your hands, but if you do not touch the herpes fluid or wash your hands after touching the herpes fluid, it is likely that you will not be infected either. A person who has been exposed to chickenpox and who has previously received the chickenpox vaccine is likely to have acquired immunity to chickenpox and is not contagious. If a person who is exposed to chicken pox has had chicken pox before, there is no need to worry, because chicken pox can only be obtained once, and after getting chicken pox once, you can be immune to chicken pox for life.