Varicella is an acute infectious disease caused by the initial infection with varicella-zoster virus. It occurs mainly in infants and preschool children, with children aged 1 to 5 years being the most common. It is highly contagious, with approximately 90% of contacts developing the disease and easily causing epidemics. It is characterized by fever, circumscribed red papules, herpes and scabs on the skin and mucous membranes in batches, and a centripetal distribution of the rash, mainly on the chest, abdomen and back. Children with chickenpox need to be isolated, so scientific home care is especially important. 1, isolation and disinfection: because chickenpox is very contagious, once found children with chickenpox, should be immediately isolated until the rash is all crusted and dry. The best thing to do at home is to let your child live in a room alone and not have more than one person involved in the care to avoid transmitting the virus to others. The dishes, cups and plates can be disinfected by boiling them for 30 minutes; bedding, toys and stationery can be exposed to the sun for 4 to 6 hours; washbasins, towels and handkerchiefs can be scalded with boiling water 1 to 3 times a day. 2, skin care: the skin will be particularly itchy after the chicken pox, if the child can not stand scratching with their hands, it is very easy to scratch the skin caused by infection, serious cases can leave permanent scarring. The actual fact is that you should cut your child’s nails and wash your hands with warm water. If necessary, wrap the child’s hands in cloth or fix them. The baby’s bedding should be tanned regularly and the clothes should be clean and wide to prevent overheating caused by tight clothes and overly thick blankets. In addition, the itchy skin can be used with 0.25% ice chips of furnace glycerine lotion or 5% sodium bicarbonate solution for local application, and gentian or antibiotic ointment can be applied after the rupture of herpes. It should be noted that children with chickenpox should avoid using hormonal drugs such as dexamethasone, which can cause aggravation of the condition. 3. Fever care: For children with fever of 39℃ or more, cold compresses on the head or baths with warm water at 34℃ for 20 to 30 minutes can be used. If the child develops cough, dyspnea, shortness of breath, suggesting chickenpox pneumonia. If irritability, unconsciousness, convulsions, suggest chickenpox encephalitis. If the above complications are found, the child should be sent to the hospital for treatment. 4, diet conditioning: chickenpox children due to fever and the disease itself, the body’s consumption increases, so you need to eat a light diet rich in nutrients, such as mung bean soup, milk, soy milk, wheat soup, porridge, noodle slices, dragon beard egg noodles, etc., avoid eating greasy, ginger, chili and other stimulating food. If you find that your baby has a high fever that does not subside, coughing and coughing, wheezing or vomiting, headache, irritability, drowsiness, or if your child has abscesses, abscesses, cellulitis, or sepsis, you should seek prompt medical attention.