Which skin disorder is characterized by red, itchy patches that change location?

Eczema, also known as atopic dermatitis, is well-known for its hallmark symptoms of red, itchy patches that can vary in location. This chronic skin condition often presents with areas of inflammation that can shift or change sites on the body, which is a distinguishing feature.

Unlike psoriasis, which typically displays well-defined plaques and is often chronic with a consistent presentation, or dermatitis, which may sometimes overlap with eczema but does not exclusively emphasize the shifting nature of the patches, eczema is more characterized by its flaring and then subsiding in different areas. Acne, on the other hand, is a condition related to clogged pores and is not associated with the red, itchy patches that alter location.

The dynamic nature of eczema, along with its itchiness, makes it particularly notable among skin disorders, clearly aligning with the description provided in the question.