Chickenpox is an acute infectious disease. It can occur throughout the year, but is most common in the fall and winter because the dry climate is conducive to the spread of the virus. Chickenpox occurs in preschool children and is mainly transmitted by airborne droplets or direct contact with herpes, easily causing epidemics in kindergartens, small schools or families, and is highly contagious. It is characterized by fever (before the rash) and the appearance of circumscribed red papules, herpes and scabs on the skin and mucous membranes in batches, with a centripetal distribution of the rash (the parts close to the heart are more likely to develop), mainly on the chest, abdomen and back, and less frequently on the extremities. Chickenpox is a self-limiting disease caused by varicella zoster virus infection, and the infectious period is from 1 to 2 days before rash onset to 14 to 21 days after crusting of lesions. It is characterized clinically by the appearance and simultaneous presence of various rashes such as macules, papules, herpes and crusts on the skin and mucous membranes, with mild systemic symptoms. The population is generally susceptible, mainly in children, with a peak at the age of 2 to 6 years. The chicken pox that occurs in children heals faster, some crusts dry in about five days and is not contagious, and the symptoms are lighter, while in adults the symptoms are heavier, fever, fatigue, sore throat, general weakness, and then the rash is heavier some generalized blisters, in addition to pustules, the location is deeper, it is easy to leave a little scar, the recovery time is longer than for children. Many of the blisters can slowly dry and scab in 10 to 14 days, before the blisters are completely dry and scabbed are contagious and need to be isolated for treatment.