Chickenpox (varicella) is an illness that has become much less common in the U.S. due to the chickenpox vaccine. The infection and rash will go away without treatment, but because chickenpox is easily spread from person to another, a child infected with the virus should stay home until the rash is completely crusted over.
Signs and Symptoms
red bumps that look like pimples or insect bites
a small clear blister developing on top of the red bumps
similar sores in the mouth
dry crusted sores form over the blisters
an itchy rash that usually begins on the belly, back, or face and spreads to the arms and legs and elsewhere on the body