It does not hurt when
the braces are being fixed. The soreness and pain start after a
few hours. You can ask the dentist to prescribe a pain reliever
for you like aspirin.
You can use wax over
areas of the braces that hurt the lips or cheeks.
Sometimes the wire
starts piercing the cheeks from the end of the braces after a few
days or weeks of treatment. This is because the teeth have already
started moving. So you can go to the orthodontist and have the wire
trimmed.