This video describes a skin pathology characterized by short lives, mononuclear inflammatory infiltrates with Edema. The video covers aetiology, epidemiology, clinical features, dermatographism and types of urticaria. TIMELINE: 0:04 Introduction 0:40 Patient presentation 1:12 Definition 1:36 Epidemiology 2:02 Clinical features 2:26 Dermatographism 2:50 Types of urticaria 4:17 Pathophysiology 5:04 Diagnosis 6:10 Treatment 7:00 Prognosis 7:22 Summary 8:12 End