A mild type of Dermatitis is known as Seborrheic. This skin disorder usually affects the facial skin and scalp and can lead to inflammation on the affected skin area. Along with inflammation, it makes the skin red, itchy and flaky. Seborrheic dermatitis typically the areas of the skin which are sebaceous-gland-rich. This is very much similar to dandruff in adults and adolescents, or as mild to marked erythema of the nasolabial fold.