Slide show: Types of dermatitis

Common signs and symptoms of atopic dermatitis (eczema) include:

• Itching, which may be severe, and raw skin from scratching
• Small, raised bumps, which may leak fluid and crust over when scratched
• Red, leathery, cracked or scaly patches on the skin

Most often, atopic dermatitis occurs in the folds of the elbows, behind the knees and the front of the neck. It tends to flare periodically and then subside for a time, even up to several years. The exact cause of this skin disorder is unknown but is often seen in those with a personal or strong family history of asthma or allergic rhinitis (hay fever).