Chickenpox is caused by infection with the varicella-zoster virus and is highly contagious. The symptoms of chickenpox mainly include fever and rash. The fever is usually mild and may be accompanied by chills, headache, fatigue, sore throat, and loss of appetite. These symptoms last for one to two days, followed by the appearance of a rash. The rash first appears on the trunk, then on the head and face, with the limbs being relatively less affected. Initially, the rash starts as red maculopapular lesions, which turn into vesicles within a few hours. The chickenpox rash appears in batches. The same area can show maculopapular lesions, vesicles, and crusts. Chickenpox is a self-limiting disease that usually resolves on its own in about ten days. However, complications such as secondary bacterial infections of the rash, pneumonia, encephalitis, and hepatitis can occur, potentially worsening the condition.