Isolate child from others, until all blisters have crusted and there are no new ones. Usually 6 days after onset of rash. Diet No special diet. Reye's syndrome, usually occurs in patients using aspirin or salicylates. Children usually recover in 7 to 10 days.
Adults take longer and are more likely to develop complications.
After recovery, a person has lifelong immunity against a recurrence of chickenpox. The same virus may later cause shingles, especially in immunocopromised and HIV patients.