Urticaria Mimics Conditions That May Be Confused with Urticaria Arthropod bites , Atopic dermatitis , Bullous pemphigoid , Contact dermatitis , Erythema multiforme , Fixed-drug reactions , Henoch-Schnlein purpura , Mastocytoma , Mastocytosis, diffuse cutaneous , Morbilliform drug reactions , Pityriasis rosea , Urticaria pigmentosa , Viral exanthem #Diagnosis #Differential #Urticaria #Mimics