What chronic skin eruption causes flushing of the face, particularly the nose and cheeks?

Rosacea is the correct answer to the question regarding a chronic skin eruption that causes flushing of the face, especially around the nose and cheeks. This common skin condition primarily affects the central parts of the face, leading to persistent redness, flushing, and sometimes the development of pimples or visible blood vessels.

Individuals with rosacea often experience heightened sensitivity to various triggers such as hot beverages, spicy foods, or changes in temperature, which can prompt the characteristic facial flushing. The condition is distinct for its tendency to affect the complexion without the presence of other symptoms typical of other skin ailments, such as peeling or flaking, making it particularly recognizable.

In contrast, dermatitis refers to inflammation of the skin that can manifest with redness, itching, or swelling but is not typically associated with the specific flushing described in the question. Acral lentiginous melanoma is a type of skin cancer that presents in a different manner, primarily characterized by dark, irregularly pigmented spots, not flushing. Actinic keratosis represents rough patches on sun-exposed skin and does not cause flushing but rather scaly lesions. These differences reinforce why rosacea is the accurate answer, as it specifically encompasses the symptoms described.