The early symptoms of chickenpox are fever, headache, cough, sore throat and decreased appetite, according to WebMD. The fever is usually within the 101- to 102-degree Fahrenheit range, adds KidsHealth.. The red, itchy rash characteristic of chickenpox typically does not appear until a day or two after these initial symptoms.
The early symptoms of chickenpox typically do not develop until 14 to 16 days after the patient comes into contact with the virus, cautions WebMD. This means the patient can spread the illness before he shows any symptoms.
The chickenpox rash usually forms first on the abdomen or back and face, notes KidsHealth. It then spreads to the rest of the body, including the arms, legs, mouth, scalp and genitals. It begins as small red bumps similar to insect bites or pimples, which then turn into fluid-filled blisters.
Once the rash begins, it usually takes one to two days for the red chickenpox spots to blister, burst, dry up and crust over, states WebMD. New spots continue to appear for up to seven days. It’s usually not until about 10 days after the onset of the first symptoms before all of the spots have crusted over and the patient can return to school or work.