Abstract

    A 15-Yearold tonga (a light wheeled horse cart) pony mare was presented for the treatment of a condition characterized by generalized urticarial wheals, anemic mucous membranes, concentrated urine, inappetance and unilateral chemosis. Haematological alterations included a marked leucocytosis (WBC = 14x10³/ul) with monocytosis (2.5x10⁹/L) and moderate anemia (RBC count = 4.lx10¹²/L; PCV = 18; hemoglobin = 8.2 gm/dl). There was no history of exposure to agents known tQtrigger urticaria. Parental administration of a corticosteroid preparation (prednisolone plus dexamethasone) and antihistamine (pheniramine maleate) in 4 rounds of treatment over a 16 days period was associated with rebounding of signs of urticaria after cessation of each round oftherapyo

Keywords: Urticaria, recurrent, idiopathic, pony mare