2 days later Consult your doctor. If the child has fever, make sure they rest, give plenty of juice and use a vaporizer.
Spots change to blisters, which eventually crust.
10 to 21 days 7 to 10 days 1 day before spots appear to about 6 days after. The child should be isolated until blisters crust and dry. Consult your doctor. Rest is essential. Relieve itching with Calamine lotion.