Diagnosis and Treatment of Allergic Angiitis (Anaphylactoid Purpura)

Abstract

Diagnosis of allergic angiitis depends on clinical recognition of the entity and histopathologic examination of the skin. The cause is rarely identified. Acute forms of allergic angiitis require vigorous treatment, including rest in bed; transfusions; removal of all questionable chemicals or drugs from the patient's environment and elimination of foods known to produce or aggravate the condition; antihistamine therapy, and usually steroid therapy. In its chronic form, the disease may be managed conservatively.