What were the circumstances of this fake blush? Most likely the individual has a condition known as rosacea. It is a very complex skin condition that can present itself in many different forms. It is doubtful that she can mentally bring about the flush at will. But many different foods and liquids, or simply hot air or hot water can trigger it. It is no laughing matter. The disease causes much physical and psychological impairment to its sufferers, and sometimes the flushing can develop into a permanent presence.
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