A condition characterized by inflammation, dry or oily scaling or crusting, and/or itchiness is called:

The condition characterized by inflammation, dry or oily scaling or crusting, and/or itchiness is most accurately described as seborrheic dermatitis. This skin disorder is commonly found on oily areas of the body, such as the scalp, face, and upper back. The condition often presents with yellowish, greasy scales and redness, which can be accompanied by itching.

Seborrheic dermatitis can occur in both infants and adults and is often associated with an overproduction of oil and irritation from yeast that normally lives on the skin. This combination of factors leads to the symptoms noted in the question. Treatment options typically aim to manage symptoms and may include medicated shampoos or topical treatments to reduce inflammation and control the scaling.

The other conditions listed also involve inflammation and itchiness, but they have distinct characteristics that differentiate them from seborrheic dermatitis. For example, psoriasis commonly features thick, red patches covered with silver-white scales. Eczema (or atopic dermatitis) usually presents as dry, itchy skin often linked to allergic conditions. Atopic dermatitis is also characterized by intense itching and a tendency to flare up in response to environmental triggers. While these conditions can share some symptoms, seborrheic dermatitis is the condition that fits the description provided in