These patches can also be itchy and scaly, making it hard to tell the difference between nummular eczema and ringworm. However, nummular eczema is usually more noticeably irritated and inflamed ...

A Lyme disease rash may be warm but not itchy. Ringworm rashes are itchy. Eczema (atopic dermatitis) is a chronic inflammatory skin condition (meaning long-lasting and persistent). It is caused by ...