snow_white

There are little veins inside our nose. If you blow your nose continuosly it is normal that blood appears. Have you ever had blood coming out of your nose of a sudden during summer or when it is really hot? your veins dilate and then blood comes out. So when you blow so often your veins also suffer and then can bleed. But that is normal. Virus don't cause colds. Bacterias do. Anyway, any of these won't make things worse if you bleed. If you have a cold or a virus infection is because you have this virus or bacteria already inside your body. Also remember that your body has agents to fight against external agents, you will survive