Ya i know it does pain... A LOT... but really if you ask me the pain isn't so bad that you won't go to the school... In fact believe you me but going to the school, rather will distract you from the pain...
book an appointment with ur ortho so they clue in ur in pain and ur not gonna sit around and suffer because they dont trust u .... thruth be told .... its better to do things urself than to have others do it for u that way u can assure urself everyhing is good
when it happened to me when i had braces i would take Tylenol. and if your othro gave you wax for it hitting your mouth causing a sore i put wax on the braces but you didnt say anything like that but take tylenol
Use some aspirin or oral-gel or salt and water or mouth wash (to kill mouth bacteria). Advise the teacher or get a note from your parents that this is for your mouth pain. You are not the only one who has been through this.