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Blushing is the involuntary reddening of the face, usually triggered by emotions such as embarrassment or stress.
Causes of blushing
Blushing is caused by your sympathetic nervous system – the network of nerves responsible for triggering your 'fight or flight' reflex.
Treating blushing
Blushing only needs to be treated if it's affecting your quality of life or is the result of an underlying condition.