Eczema usually appears on visible areas of skin. But sometimes it strikes less easy-to-see places like the top of your head. Scalp eczema causes itchy, dry, red, and inflamed skin. You may also ...

6. Head lice Lice are tiny insects that live on your scalp, lay eggs there, and bite your skin, causing symptoms like: Itchy scalp, especially at night when lice are most active. A subtle ...