The feeling of discomfort or soreness during orthodontic treatment is entirely normal!
You may experience some discomfort of the teeth during chewing or biting. This will usually subside 2-3 days after the orthodontic appointment. We recommend you take whatever you normally would for a headache.
Your lips, tongue and cheeks may take some time to adjust to the braces as well. You can place wax over the braces in order to protect the tissues in your mouth from irritation. You may also rinse your mouth with warm salt water.