The two furrows next to the nose are called the nasolabial folds, which are the dividing line between the external nose and the face, and also constitute an important anatomical mark of the facial contour. From the nasolabial folds down to the corners of the mouth and up to the root of the nose, it constitutes what we medically call the “danger triangle”. Because there are no valves in the veins of the face in this area, blood can flow in both directions. In case of inflammatory boils, the inflammation can spread backwards into the skull causing severe cavernous sinus thrombophlebitis. In addition, on both sides of the nose within the midpoint of the nasolabial groove is an important point in Chinese medicine called Yingxiang point, Yingxiang point for acupuncture massage, can treat rhinitis, sinusitis, remove a lot of discomfort symptoms of the nose.