About a week: Chickenpox tends to emerge in waves of new spots over a period of 2-5 days.The blister grows, pops & crusts usually within a single day. A person is considered contagious for 1-2 days before to 6 days after the emergence of the rash.
Answered 12/10/2013
5.1k views
14 to 21 days: Chicken pox is contagious even before the rash appears and remain contagious till the last blister has scabbed
Answered 3/23/2015
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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