Hey, I'm fourteen and I just recently got braces (recently as in two days ago). The pressure's nearly gone, but they constantly cut away at my lips. The dentist gave strips of wax to put on the pointed parts of the metal things on my teeth to reduce friction but I haven't put them on yet. Why, you ask, am I being an idiot and not putting them on? Well I don't think I'm going to put them on every tooth every day, and so I don't want to get "hooked" on them (like I don't want to be uncomfortable without my sacred wax) without finding any other solution. Got anything?
It gets better with time..
I had braces when I was younger. It cuts your lips for a while, but like the pressure, it goes away. Give it a couple of weeks and you get used to it. Maybe it has something to do with just getting used to it, or maybe it cuts away everything to the point that there's nothing left to cut. I don't know... but the point is, give it a few days. It'll get better.
I never used wax when I had my braces. I just got use to it, eventually your mouth will make room for the braces.
I've had braces before, waaaaaaaaaaaay back in 6th grade. One time, my orthodontist neglected to cut the wires off completely in the back, so a bit of wire stuck out from the braces and scraped the insides of my cheek. After a few days (when I finally decided that something was wrong), my cheeks were sore and bleeding. I could barely eat.
Always make sure your dentist did your braces well. If it hurts after a few days, something is probably wrong.
like the first guy said, the wax's rubbing will help. if you don't like it, try orabase. its a sort od gel that takes away about 50% of the pain, making it easier to adjust.