Most of the long chickenpox in 1 ~ 2 weeks to recover, a very small number of severe patients will extend the recovery time, the condition of the dangerous may die. Chickenpox is a highly contagious disease, is chickenpox – herpes zoster virus infection, patients infected with this virus will have 9 ~ 21 days of incubation period, the end of the incubation period will enter the onset of the disease, the first 1 ~ 2 days will have a low-grade fever, and then a rash, the beginning of the rash, and then become herpes, herpes will be scabbed off, the overall course of the disease in about 1 ~ 2 weeks. There are also some patients with lower immunity, may occur severe chickenpox, this time the fever will be more serious, there will also be herpetic or hemorrhagic chickenpox, this kind of patients have a longer course of the disease, may leave neurological sequelae, serious death due to acute respiratory failure. Each patient’s situation is different, chickenpox recovery time is also different, it is recommended to actively cooperate with the doctor to shorten the course of the disease.