Chickenpox is caused by the varicella-zoster virus, and most infections are accompanied by fever. Some severe cases may even experience high fevers, reaching around 40°C. However, some individuals with stronger constitutions might only develop blisters on their bodies without showing any fever symptoms. Regardless of the type, once infected with chickenpox, it is crucial to treat with proper antiviral medication. Additionally, this disease is highly contagious. Avoid contact with children or elderly people as it can be transmitted through the air. It is advisable to isolate oneself, eat more vegetables and fruits, drink plenty of water, and rest. With treatment, recovery generally occurs within about a week.