Skin disorders. Computer artwork showing the structure of the skin, and the layers affected by various skin disorders. Folliculitis is the inflammation of hair follicles; Bullae are blisters; Erysipelas is a bacterial infection of the dermis; Cellulitis is a diffuse inflammation; Necrotizing fasciitis (NF) is a rare infection commonly known as flesh-eating disease or flesh-eating bacteria syndrome; Myositis is inflammation of the muscles; Myonecrosis is a condition resulting in death (necrosis) of the muscle tissue.