Psychodermatology is the treatment of skin disorders using psychological and psychiatric techniques. It is a subspecialty of dermatology.Frequently treated conditions are: psoriasis, eczema, hives, genital and oral herpes, acne, warts, skin allergies, pain and burning sensations, hair loss and compulsive skin picking and hair pulling. Psychological or psychiatric treatments are the primary treatments for some dermatological disorders, including trichotillomania and Morgellons.