facial flushing; face turning red
Describes the face becoming red, often due to embarrassment, anger, alcohol, or a medical condition. More formal and clinical than 顔が赤くなる.
My face flushed from nervousness.
Some people experience facial flushing from alcohol.
Everyday expression for 'one's face turns red'; 顔面紅潮 is a formal, often medical term for the same phenomenon.
Compound of 顔面 (face) and 紅潮 (flush, blush). The exact historical derivation is uncertain; the spelling is conventionally associated with the meaning.