Rash in dengue fever

(A) Undifferentiated macular or maculopapular rash may occur over the face, thorax, abdomen, and extremities during the acute phase of dengue. The rash is typically macular or maculopapular and may be associated with pruritus.
(B) Convalescent rash is characterized by confluent erythematous eruption with sparing areas of normal skin. It is often pruritic. The rash typically occurs within one to two days of defervescence and lasts one to five days.