2 doctors weighed in:

What exactly is chicken pox? Why do you get red spots?

2 doctors weighed in
1 doctor agrees

In brief: A virus

Chickenpox is due to infection with a virus that causes a characteristic itchy red rash that is red with blisters on top.
You are usually infectious for about a week after the rash breaks out. And one day before.

In brief: A virus

Chickenpox is due to infection with a virus that causes a characteristic itchy red rash that is red with blisters on top.
You are usually infectious for about a week after the rash breaks out. And one day before.
Dr. Richard Ohnmacht
Dr. Richard Ohnmacht
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