Chickenpox is an infection caused by the chickenpox virus. The symptoms are mainly fever, and gradually red granular papules appear on the front and back of the child’s chest, with blister-like changes appearing a day later. The child has a high fever, poor mental status, and an itchy rash. The diagnosis can be confirmed by blood tests and virus isolation, and after the diagnosis is confirmed, the following treatment is given. The first choice of medication for chickenpox is acyclovir, which should be given orally with acyclovir pellets along with interferon gel or acyclovir ointment to apply the itchiness, or in severe cases with glycolic lotion. Systemic treatment we need to give the child more attention to rest, to create a more comfortable environment, the temperature at about 20 degrees Celsius, not too humid, humidity at about 40% will do. If there is a complication of pneumonia and encephalitis, you need to go to the hospital in time. The main manifestations of pneumonia are related to high fever and frequent coughing and labored coughing, while encephalitis is characterized by drowsiness, poor mental state, and in severe cases, vomiting and ejecting episodes. Give your child oral vitamin c food, such as potatoes, oranges, kiwi, tomatoes and the like, poor gastrointestinal motility during illness, do not eat meat, must be a light diet, while spicy and stimulating food, seafood food is not to eat.