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A 46-year-old member asked:

How long does it usually take for one child to pass chicken pox to a sibling?

3 doctor answers5 doctors weighed in
Dr. Patrick Hieber
Dr. Patrick Hieberanswered
Pediatrics 50 years experience
Chicken pox: The incubation period for chickenpox is 14-21 days with the majority of susceptible children beginning to manifest fever and vesicular ( pox -pink base with clear blister on top) lesions by day 10. The lesions appear in "crops" over 4-5 days. A child is considered contagious up to 48 hours prior to onset of symptoms and up to 24 hours after last 'crop" of lesions has occured and crusted into scabs.
Dr. Joseph Eastern
Dermatology 44 years experience
Not very long.: All that is needed is droplets from a sneeze or cough, or contact with the clothing, bed linens, or oozing blisters of an infected person; so a few minutes of contact is all that is necessary. After that, there is an incubation period of about 2 weeks before the sibling gets the rash.
Dr. James Ferguson
Pediatrics 46 years experience
Depends: They may have both been exposed to the same source at the same time & break out differentlywithin the usual range of 10-21 days from exposure. If not, the 2nd began exposure from a day before the spots appear & would break out from 10-21 days later. Simply being in a room together with a case for 1/2 hour is enough to pass it.

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Similar questions

A 31-year-old member asked:

How long is it supposed to it take for chicken pox to disappear?

1 doctor answer1 doctor weighed in
Dr. Lawrence Wasser
Specializes in Pediatrics
Weeks: The rash progresses from papules to vesicles to scabs over 1-2 weeks. You will be contagious until all the lesions have become dried scabs. It may take another week for the scabs to go away.
A 34-year-old member asked:

How long would it take before chicken pox start to itch?

1 doctor answer2 doctors weighed in
Dr. Mark Diamond
Pediatrics 46 years experience
Immediately: Usually as soon as one breaks out.Anti-itching medication or lotion may help the symptoms.
A 45-year-old member asked:

How long is it supposed to it take for chicken pox to clear?

1 doctor answer1 doctor weighed in
Dr. Jeffrey Fromowitz
Dermatology 19 years experience
Variable: Everyone is different and the time will depend on the severity of the infection. It is usually between 2-4 weeks.

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Last updated Jun 19, 2017
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