How come my mouth itching so much when i eat/drink things?

Allergies?: You may be allergic or sensitive to some of the foods and liquids you ingest. See your dentist to give you a thorough oral exam to rule out other possible causes. You might want to see an allergist as well. See if you can figure it out yourself. Pay attention to what causes this and if there is some common link (such as citrus, cinnamon, etc.).