Help! My sophomore has had a tough time recently with mouth ulcers and open sores from his braces which made playing really painful. About 4 weeks ago the orthodontist had to fix bent wires which were cutting his mouth all to pieces. Shortly thereafter the band director switched practice to right after school which basically meant he was playing nonstop for 3-4 hours--he came in complaining of extreme mouth pain. At a couple of competitions the new band director warmed them up for 1-2 hours straight before they took the field. At the same time he noticed a decline in tone, loss of high notes, and lack of endurance/pain. It has been quite noticeable--suddenly he can't play anything and sounds like a beginner. Can anyone tell me about embouchure overuse? Does this sound like a cause? What do you do for it? (His lessons teacher moved out of state so we have left messages asking for help).