What term describes a localized area of skin that has become inflamed and is painful?

An abscess refers to a localized area of inflammation that typically results from an infection, leading to the accumulation of pus beneath the skin. This condition is characterized by swelling, redness, heat, and significant pain in the affected area. An abscess can occur in various tissues, including the skin, and is often enclosed within a distinct capsule, separating it from surrounding tissues.

In contrast, a lesion is a more general term that refers to any abnormal tissue change or damage and does not specifically denote infection or inflammation associated with pain. Excoriation refers to a scratch or abrasion on the skin, usually due to excessive scratching or rubbing, which may not necessarily involve infection or localized inflammation. Infection denotes the presence of pathogens causing disease but is a broader term that does not highlight the localized abscess formation associated with pus and inflammation. Therefore, the term "abscess" accurately describes a painful, localized area of skin that is inflamed and filled with pus, making it the most precise and relevant choice.