Seborrheic Dermatitis: This is a common condition in the elderly, characterized by a rash on the face, particularly on the nose, eyebrows, and ears. It is often associated with a red, itchy, and flaky appearance.

Rosacea: A chronic skin condition that causes redness, acne-like symptoms, and visible blood vessels on the face. It is common in older adults and can be triggered by various factors, including sun exposure and certain medications.
Contact Dermatitis: An allergic reaction or irritation caused by contact with substances such as soaps, cosmetics, or plants. This can occur at any age and may present with redness, itching, and blistering on the face.
Actinic Keratosis: A precursor to skin cancer, caused by prolonged sun exposure, leading to rough, scaly patches on the face.
Eczema (Atopic Dermatitis): Although more common in children, eczema can persist into old age or even start in adulthood, presenting with itchy, inflamed skin on the face.

Lupus: Systemic lupus erythematosus can cause a butterfly-shaped rash across the cheeks and nose, and although less common, it is crucial to diagnose due to its potential for serious systemic complications.
Sarcoidosis: A condition that can cause skin lesions, including on the face, and can be associated with systemic symptoms. It requires prompt diagnosis due to potential lung and other organ involvement.
Mycosis Fungoides (Cutaneous T-cell Lymphoma): A rare type of skin cancer that can present with patches, plaques, or rashes on the face, among other areas. Early diagnosis is critical for treatment.

Pemphigus: A group of rare skin disorders that cause blistering of the skin and mucous membranes. It can be life-threatening if not treated promptly.
Dermatomyositis: An inflammatory disease characterized by skin rash and muscle weakness. The skin rash often appears on the face, among other areas.
Granuloma Faciale: A rare, chronic skin condition characterized by single or multiple, reddish-brown, bumps on the face, typically on the forehead, cheeks, or nose.