Typically, the presence of chickenpox requires a 2-week suspension from school before school is allowed, but the exact number of days of isolation required should depend on the severity of the patient’s illness and whether it is complicated by other diseases. Chickenpox is caused by varicella-zoster virus infection, which is highly contagious and should be promptly isolated once diagnosed. The early onset of the disease is dominated by fever, and the rash appears rapidly in 1-2 days, mostly on the trunk and face, and can involve the whole body. After 1-6 days, the blisters dry and crust over until they fall off, and the entire course of the disease lasts about 10 days. The rash is usually contagious from 2 days before the onset until the blisters are completely dry, so it should be isolated for about 2 weeks until the rash is completely crusted over and there is no fever, then the isolation can be lifted. However, if the patient’s condition is more serious, complicated by chickenpox pneumonia, chickenpox meningitis and other conditions, should be actively treated, the schooling time needs to be extended. During the isolation period, family members should wear masks, avoid close contact with the patient, clothing and utensils are stored and used separately, and the patient’s clothing and bed linen are disinfected by boiling and exposure to the sun.