Most children feel better, have scabs on all of the pox, and are safe to return to school or other activities within one week of the beginning of the rash. The pox may remain visible for days or weeks after that, but most of them will not scar unless bacteria are introduced during scratching.
Once someone catches chickenpox, the viral infection usually lasts for a lifetime, with the virus kept in check by the immune system. About 1 in 10 adults will experience shingles when the virus re-emerges during a period of stress for the body.
To learn more you should go to a medical professional.
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