35-year-old patient appeared with nummular eczema 2 on the left side of the neck. insect bites be elicited No, no allergies. Eczema are slightly raised, 1 Rupee coin size, not itchy.

presentation to the dermatologist gave no further idea.Does anyone have an idea what could be? Where can I make myself more clever to help the patient? I have set a photo attached, so you can imagine the topical finding better.