Which skin condition is primarily an inflammatory disorder often presenting with itching and redness?

Eczema is an inflammatory skin condition that is particularly characterized by symptoms such as itching and redness. It manifests as patches of dry, irritated skin that can vary in severity, leading to discomfort and sometimes secondary complications from continuous scratching. Unlike other skin conditions listed, eczema often has links to allergies or irritants and can be triggered by environmental factors.

In contrast, psoriasis typically presents with scaly, red plaques and may not be associated with significant itching. Tinea unguium, or nail fungus, primarily affects the nails and isn't defined by inflammation in the same manner. Folliculitis involves the inflammation of hair follicles, often presenting with pustules or red bumps, but it is not as broadly classified under inflammatory skin disorders that encompass widespread itching and redness like eczema.