Redness is a blush caused by a sudden rush of blood to the cheeks, which appears as a red mass with a thick center and faded surroundings. It is often caused by sympathetic excitement in the body and increased secretion of catecholamines such as norepinephrine, resulting in an increased heart rate and capillary dilation. It is commonly seen in diseases such as cholinergic urticaria, penile tuberculosis rash, and cowpox-like blistering disease. First of all, you should take a natural attitude towards blushing, allow it to appear and exist, not to resist, inhibit or cover it up, not to be anxious and distressed about having blushing, thus eliminating the tension and worry about blushing and interrupting the vicious circle caused by it. The next step is to train in self-confidence. Most people who blush easily in front of people lack confidence in themselves and have a sense of inferiority, thus strengthening the cultivation of self-confidence and overcoming the sense of inferiority can play a role in the bottom of the barrel. The pathological ones should be treated for the cause.