1 Lice are transmitted through direct contact with an infested person or his personal objects regardless ofâ¦. 2  Scalp Lice: What They are and How to Deal With Them Scalp lice are rapidly becoming a major problem in the United States.
Skin disease causes of ear itching. Ear itching can also be caused by skin diseases that affect other parts of the body. These include: Eczema (skin rash usually caused by allergic reactions). Neurodermatitis (skin condition, the cause of which is not known, characterized by intense itching).
Tinea capitis and impetigo are two of the most common infectious causes of rash behind the ears. 1  Tinea capitis (also known as the scalp ringworm) is an infection caused by a class of fungi known as dermatophytes. This fungus has a predilection for the human skin.