When you get your braces on, you may feel some soreness in your mouth and your teeth may be tender to biting pressures for three to five days. This can be relieved by taking ibuprofen or whatever you normally take for headache or similar pain. The lips, cheeks and tongue may also become irritated for one to two weeks as they toughen and become accustomed to the surface of the braces. You can put wax on the braces to lessen this. We'll give you some the day you get your braces on.