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You may have had an infection that caused the pain and swelling of the lymph node. Nevertheless, you are now aware of the dangers of tobacco, even if you don't smoke it.
If the pain continues you will need to see your primary provider. If it's an infection, then antibiotics will be necessary. A small stone in a salivary gland is another possibility. These generally clear on their own. Lymph nodes will always swell when there is any inflammation or infection in their area. That is a symptom that is expected.
Please let me know if you need additional information about this.