Hi I am the mother of a six year old boy. My son was diagnosed with allergies and since living near a bunch of superfund sites and a current remington gun factory, my son has had bloody noses and darkened bridge of nose appeared. It looks like dark under the skin and it gets lighter and darker, I noticed it is darker as he gets these bloody noses every morning. He also was hit in the nose with a baseball while living it this town a few years ago where both nostrils started bleeding. Recently he has a couple blood vessels cauterized and it seemed to help. I constantly put a humidifier in the room at night which also helps but the darkened portion of his nose is worrisome. In addition, I noticed it follows up onto the forehead also on occasion as if following a vein. What is causing this? How should I treat it? Thanks.