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in chicken pox
subsides with in one week after the intial phase.
If fever is persisting during the scab shedding phase then one should be investigated to rule out other concurrent infection the body (CBC. ESR
TYPHI DOT TEST.MALARIA
ANTIGEN,URINE ROUTINE EXAMINATION AND CXR)
Then according to the investigation report one should be treated for the fever.
Hope your query is answered with your satisfaction.