Medically reviewed by William Truswell, MDIt can be difficult to tell the difference between seborrheic dermatitis vs.

Eczema is not contagious, and is a chronic disease that causes symptoms of dry, itchy skin that can appear like a red rash, with some patients reporting a burning sensation, tingling or stinging.

This type of dermatitis is most common on the scalp, though it can also occur on the face, chest, and around the ears. It often causes scaly patches, skin discoloration, and dandruff. Stress or ...