One fact about dermatitis is that there are several forms of it such as allergic contact, atopic, stasis and nummular dermatitis, says About.com. Allergic contact dermatitis is a hypersensitive reaction to allergens and atopic dermatitis is also an allergic response with symptoms such as hay fever, dry skin and asthma.
Stasis dermatitis is a result of insufficient blood flow to the ankles and lower legs. Nummular dermatitis is associated with dry skin and manifests in coin-shaped patches that may appear anywhere on the body, explains About.com. Other kinds of dermatitis include diaper, autosensitization and seborrheic. Diaper dermatitis is caused by prolonged skin contact with a wet diaper. Autosensitization dermatitis manifests as an itchy rash that is a symptom of an inflammatory or infectious condition.
Treatment methods for different types of dermatitis include keeping the skin moisturized, applying topical medicines, and avoiding harsh perfumes and detergents. It is also important to treat seemingly unrelated rashes or fungal infections, says About.com. If the type of dermatitis is clinically diagnosed, it is easier to treat. However, few tests exist that accurately diagnose types of dermatitis, as of 2015. Medical professionals usually diagnose dermatitis based on the appearance of symptoms and the history of their occurrence.