Why do I get a sudden sharp pain in my jaw when eating a sour lemon?
1. Introduction A sudden, sharp pain in the jaw when eating a sour lemon is caused by an intense, rapid spasm of the major salivary glands attempting to eject saliva through a narrowed or obstructed duct. The high acidity of the lemon triggers a robust, involuntary gustatory reflex, commanding the parotid or submandibular glands to … Read more