I have been itching all over!
Any inflammation of the skin can be called dermatitis, so there are many different types of dermatitis.
It is often very difficult to determine any cause, for although the skin is the most visible of our organs, its diseases are very diverse and often difficult to diagnose.
In most cases simple steroid anti-inflammatory creams will control dermatitis, but it may become persistent and widespread.
For further information see the specific types of dermatitis.