Pain/Discomfort of cheeks
If any part of your appliance is irritating your cheeks, take a pea sized portion of orthodontic wax and mold over the area causing the irritation. Wax will help cushion your cheek away from the source of irritation and allow it to heal. You may temporarily use sugarless gum if you are out of wax.
Pain of teeth or bones
It is normal to have some soreness of teeth after you get new appliances and/or wire. This may last from 1 to 5 days. To ease the discomfort you may take acetaminophen or ibuprofen as directed.