Started with pain in the left side of my face and then the left side of my neck started to swell. The swelled part of my neck hurts.?

Wisdom tooth. Wisdom teeth generally appear between the ages of 17 and 25. If they are impacted teeth it can result in pain, infection damage to other teeth and other problems, like a neck pain, headache, etc. Impacted wisdom teeth that cause pain or other health complications are usually extracted. Rec. See your pcp or dentist. Panoramic x-ray will support the diagnosis.