Lewis, Lucinda. To Your Health- Embouchure Overuse Syndrome: What Every Wind Player Should Know. International Musician 105 (October 2007): 15.
Embouchure overuse syndrome is the most common cause of embouchure dysfunction and pain. It is caused from playing longer and with greater intensity than usual, though medical, dental and emotional trauma may be a contributing factor. Facial fatigue and swelling are symptomatic of embouchure overuse syndrome. Embouchure problems do not affect the general population and therefore are more difficult to treat. Many symptoms can not be viewed, seen or felt by a physician; they must be heard and felt by the player. It is best to practice within safe limits of one's abilities to avoid this chronic illness.