Chickenpox is an acute infectious disease caused by the initial infection of varicella-zoster virus, which is transmitted mainly by respiratory droplets or direct contact, and is prevalent in infants and preschool children. The symptoms of chickenpox in children are as follows: 1. cold-like symptoms: fever, headache, generalized lethargy, etc., 3 days before the onset of the disease; 2. skin changes: rash appears within 24 hours of the onset of the disease, rash first on the scalp, trunk pressure areas, centripetal distribution, and then small pink rash becomes a round, tense blister of rice to pea size; 3. other manifestations: mucous membranes are also The following tests are needed to confirm the diagnosis of suspected chickenpox: 1. virus isolation: take the herpes liquid to inoculate the human embryonic amniotic tissue, the positive rate of virus isolation is high; 2. serological examination: the commonly used test is the complement binding test; 3. blood picture: the total number of white blood cells is normal or slightly reduced, and the lymphocytes are increased; 4. herpes scraping or tissue biopsy: use Richter or Kimsa staining The herpes scraping or tissue biopsy: check the multinucleated giant cells with Richter or Kimsa stain, and check the intranuclear inclusion body with acid stain. The treatment of chickenpox and self-healing time There is no special treatment for chickenpox, generally in 7-10 days can be self-healing, its treatment is mainly symptomatic treatment and prevention of secondary skin infections, as follows: 1, local treatment: to stop itching and prevent infection, such as the external application of furnace glycerin lotion, 1% methyl violet or antibiotic ointment; 2, antiviral treatment: in the chickenpox rash within 48 hours after taking timely Acyclovir can be given intravenously in severe cases. In addition to active treatment, chickenpox also requires the following care: 1. pay attention to disinfection and cleaning of the affected area; 2. open windows regularly to maintain indoor air circulation; 3. give timely heat treatment and pay close attention to changes in the condition; 4. avoid scratching herpes with hands.