Chickenpox is an acute infectious disease caused by a viral infection, and the full name of this virus is called varicella-zoster virus. Chickenpox and shingles are actually caused by a viral infection, but are simply two manifestations of that viral infection. Chickenpox is mainly manifested as scattered spots, papules, herpes and scabs on the trunk, limbs, head, face and neck, which is figuratively known as “four in a row”. Chickenpox infection is accompanied by fever, which does not last long. Chickenpox lasts for 7-10 days and is no longer contagious once it has scabbed over. Chickenpox is transmitted through respiratory droplet transmission and contact with blister fluid. Chickenpox is contracted only once in a person’s lifetime. The main population of chickenpox is mainly children, but adults can also be infected if they are not immune to it. After chickenpox is cured, a part of the population will become latently infected, that is, the varicella-zoster virus will be latent in the nerve roots, and then after the immunity is not quite normal, for example, after the complication of other diseases or the use of immunosuppressant drugs or infections, tumors, that is, the immune function is not quite normal disease, shingles will occur again.