People who have had chickenpox will not get chickenpox again, because after recovering from chickenpox, they can produce antibodies in their bodies and will not get chickenpox again. However, the virus can be latent in the body and can be activated later to develop shingles. Chickenpox is highly contagious, and the period of infection is mainly during the rash. The main reason for this is that it is not a good idea to have a good idea of what to expect. The rash of chickenpox appears in stages, so you can see spots, papules, herpes and crusts on the skin at the same time, and after the crusts appear, it is no longer contagious. The transmission of chickenpox is mainly by respiratory droplets. The virus can also be detected in the herpes fluid of chickenpox herpes, so if you come in contact with the herpes fluid, it can also cause contact infection.