3. Breathe Right
If your nose starts to bleed, then the first thing you want to do is to make sure you’re breathing right. You don’t want to breathe through your nose and end up choking on blood, do you? Instead, switch to breathing through your mouth for however long you need to. And, of course, take deep and long breaths rather than hyperventilating. Most people will panic when their noses start to bleed, and this means that they will up their heart rate – and thus their blood flow – by immediately increasing their breathing rate.
Which is just about the worst thing that you can do in most medical emergency, including nosebleeds and snakebites. If anything, increasing your breathing rate just means that you will bleed more or at a faster rate. So if you have a nosebleed, the best thing you can do is to relax and take a deep breath.