Hi i have pain in lower right side of jaw inside mouth and light headed with sores on tongue and roof of mouth what can i do to relieve?

Assessment : Sounds like either a viral illness or some sort of infection causing mouth ulcers. Some are treatable and others can at least be managed while your body recovers. Please see a doctor for examination. Bonjela may ease the pain but a specific diagnosis will assist with proper treatment

Sores: Depends on which microorganism is causing your symptoms. Please see your Dentist for an evaluation and for the correct course of treatment. Sometimes there are OTC products that can help, sometimes a prescription medication is required.

Depends on diagnosis: See dentist or Dr. Could be h. Zoster ["shingles"], or a variety of other ailments. Indicate that it is urgent when you call so you can be seen immediately.

Infection: It is likely that you may have an infection in your gum or ear and the lymph nodes would possibly be inflamed as well. The sores could be aphthous ulcers which are primarily seen during viral illnesses. It is also difficult to rule Herpes or Oral thrush without doing a proper examination. See a doctor who can examine you and then treat you accordingly