Thanks for using Health Care Magic.

Read your query.

Lymph node enlargement can be due to the pain respond to the impacted third molar.I would advice you to consult oral and maxillofacial surgeon and get it evaluated along with a radiograph ,get it extracted.

For the pain continue with Ibuprofen (if you are not allergic to any medicine) and antibiotics amoxicillin.

Regarding the premolars , get the needful restoration done .

Do warm saline gargling.

Hope this was useful.

Thanks and regards.

Hello,
I have read your inquiry. Yes, you could have drainage from an infection involving a tooth. I suggest having x-rays taken to evaluate both teeth. A cavity, that resquires a filling, should not cause a lymph node to swell. The decay may be deep and allowed bacteria to invade the pulp chamber causing an infection. Other associated symptoms may include temperature sensitivity especially to hot, pressure sensitivity, swelling around the tooth and a bubble. The wisdom tooth could have developed a cyst around it or if tipped against the root of an adjacent tooth, can cause root resorption of the erupted tooth. A panorex showing your teeth placement in the jaw is helpful in diagnosising wisdom teeth infections and other pathologies. Cone beam imaging would give you a 3D view of your jaw. Consult your dentist for an exam and diagnostic X-rays.

Trauma to your mouth can cause injuries to your dentition that may show up months later. if your accident involved an impact to your jaw or you banged your jaw together, there could be cracking or another tooth involved.
Your medical history should be reviewed. Keep well hydrated, proper nutrition, and balanced vitamins. Take an anti-inflammatory medication such as Tylenol or Advil. Benedryl, an anti-histamine, may be beneficial to reduce swelling and inflammation. Maintain good daily dental hygiene.

Other respiratory infections can exhibit lymph node swelling. You may be coming down with a cold, virus, etc. There are systemic reasons. Blood tests can evaluate organ function and indicate white blood cell count showing your level of immunity and activity of infection fighting cells. Consult your physician for testing and exam.

I hope that my suggestions are helpful. For a complete diagnosis, consider seeing your dentist and physician. I am glad to answer additional questions and hope you will feel better soon.