Skin flushing, or blushing, is characterized by feelings of warmth and rapid reddening of your neck, upper chest, or face. Blotchiness or solid patches of redness are often visible when blushing. Flushed skin is a common physical response to anxiety, stress, embarrassment, anger, or another extreme emotional state. Facial flushing is usually more of a social worry than a medical concern.
However, flushing may be linked to an underlying medical issue, such as Cushing’s disease or a niacin overdose. Cushing’s disease is caused by high levels of cortisol in the body. A niacin overdose is caused by taking too much over-the-counter niacin medication to lower your cholesterol. Seek medical help if you have reoccurring skin flushing or blushing.