Allergy Atopic dermatitis Allergic contact dermatitis Autoeczematization Drug reaction Photoallergic reaction Irritant Irritant contact dermatitis Lichen simplex chronicus Nummular eczema Asteatotic eczema Dyshidrotic eczema (pompholyx) Intertrigo Frictional lichenoid dermatitis Immunologic Wiskott–Aldrich syndrome Hyperimmunoglobulin E syndrome Omenn syndrome Severe combined immunodeficiency Graft-versus-host disease Agammaglobulinemia Immune dysregulation, polyendocrinopathy, enteropathy, X-linked (IPEX) Infectious Seborrheic dermatitis Dermatophyte infection Scabies Molluscum contagiosum Pityriasis rosea Human immunodeficiency virus Oncologic