Plasmodium vivax malaria presenting with urticaria.

Plasmodium falciparum malaria has been known to be associated with urticaria,'12 but Plasmodium vivax malaria presenting with urticaria is a rare association. We encountered a patient complaining of two attacks of high grade fever with chills and rigor, on alternate days lasting for 5-6 hours and each time associated with urticarial rashes. He was given chlorpheniramine maleate and dexamethasone by injection on the first day of fever, which relieved both fever and urticaria. The patient had no history of fever with urticaria or any allergic reaction in the past. 

Full text article: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2429266/pdf/postmedj00172-0...