Common causes of a flushed face include anger, embarrassment and other emotions, spicy or hot foods, fever, rosacea and alcohol use, states MedlinePlus. Other causes include menopause, carcinoid syndrome, some diabetes and cholesterol medications, and quick temperature changes. Blushing is the body's normal response to excitement and other strong feelings.
Patients with a persistent but harmless skin disorder called rosacea experience red faces, often with swelling and acne-like facial sores, explains MedlinePlus. As of 2015, there is no cure. A carcinoid tumor, a rare form of cancer, secreting chemicals into the bloodstream, causes carcinoid syndrome, notes Mayo Clinic. Individuals who experience frequent blushing or flushing of the face or neck, coupled with diarrhea, wheezing, hives or other symptoms need to call a doctor, explains MedlinePlus.