What to do about bleeding nose and gums?

I just came here this fall. Since then, my nose has been bleeding occasionally without any injury. My friend told me it was because of the dry air of U.S. Is he right? How can I prevent this situation? I also have a problem when I brush my teeth. My gums are always bleeding and not just a little!! What should I do? Thanks.


How can I find help to stop drinking?

I have just realized that I am not able to handle alcohol. Whenever I go to a bar or a club, I drink to excess. I do not have any urge to drink. However, when I am in a club or a bar, the same thing happens: I drink too much! This is making me think that I am an alcoholic. My question is: Where can I go for help? Thanks.