The document discusses chickenpox, caused by the varicella-zoster virus. It is transmitted through coughing, sneezing or touching blister fluid. Symptoms include itchy blisters on the face, trunk and scalp, as well as fever, vomiting and diarrhea. Chickenpox lasts 5-10 days and causes an itchy rash. Most cases can be treated at home with calamine lotion or oatmeal baths. A vaccine can prevent chickenpox.